WO2017078252A1

WO2017078252A1 - Electronic terminal device for shape-retaining copying of text included in pdf document, and method for shape-retaining copying of text included in pdf document of electronic terminal device

Info

Publication number: WO2017078252A1
Application number: PCT/KR2016/008717
Authority: WO
Inventors: 이창일
Original assignee: 주식회사 한컴플렉슬
Priority date: 2015-11-03
Filing date: 2016-08-08
Publication date: 2017-05-11

Abstract

The present invention extracts glyph information with respect to special characters from a glyph map included in a portable document format (PDF) document, stores the information in a predetermined glyph table, renders shapes of the special characters based on the glyph information for the special characters stored in the glyph table, and inserts the same into a different electronic document when a command for copying the special characters from the PDF document into the different electronic document is applied; and as a result can ensure that the special characters can be copied into the different electronic document while retaining the same special character shape as in the PDF document.

Description

An electronic terminal device for copying the shape of a character included in a PDF document and a method for copying the shape of a character in a PDF document of the electronic terminal

The present invention relates to a technique for supporting copying of characters included in a Portable Document Format (PDF) document to another electronic document while maintaining the same shape as the font or size of the corresponding characters.

Recently, as computers, smartphones, tablet PCs, and the like are widely used, various kinds of electronic document-related programs have been released, which allow users to view, create, and edit electronic documents using such terminal devices.

These electronic document related programs include word processors that support the creation and editing of basic documents, data entry, arithmetic operations, spreadsheets to assist with data management, and presentation programs to assist presenters.

As such, various electronic document related programs have been released, and as the number of times that users browse, create, and edit electronic documents using electronic terminal devices has increased, electronic documents having various types of formats have emerged.

Of these various types of electronic documents, PDF (Portable Document Format) documents have a high compatibility that can be compatible with most operating systems, and fonts, images, graphics, document types, etc. of the original documents are retained. It is widely used in the printing industry, and can be easily shared in online and offline environments, but also has high security, and is widely used when distributing materials in public institutions and research institutes.

However, unlike a general electronic document, a PDF document does not manage formatting information such as font or size of characters included in the PDF document, but instead stores glyph information indicating the appearance of the characters. Since the shape of the characters contained in the PDF document is rendered and displayed by referring to the Glyph Map, when the characters included in the PDF document are copied to another electronic document, the other electronic document is displayed. There was a problem in that formatting information such as font or size of the characters could not be referred to, so that the font or size of the characters on the other electronic document could not be displayed the same as that in the PDF document.

Therefore, with regard to PDF documents that are widely used in recent years, when copying to other electronic documents for certain characters included in the PDF document is performed, the shapes of the characters are the same as those on the PDF document. There is a need for a study of techniques that can be maintained and inserted into the other electronic document.

According to an embodiment of the present invention, an electronic terminal apparatus for maintaining shape copying of characters included in a Portable Document Format (PDF) document and a shape maintaining copying method for characters included in a PDF document of the electronic terminal apparatus may be included in a PDF document. When a copy command to another electronic document is authorized for the specific characters included in the document, the glyph information of the specific characters is extracted from a glyph map included in the PDF document, and the image information is extracted on a predetermined table. After storing, the shape of the specific characters is rendered on the PDF document by rendering and inserting the shapes of the specific characters into the other electronic document based on the glyph information of the specific characters stored in the glyph table. It is intended to support copying to other electronic documents while remaining the same as.

According to an embodiment of the present invention, an electronic terminal apparatus for maintaining shape copying of characters included in a Portable Document Format (PDF) document includes a first electronic document for at least one character among a plurality of characters included in the PDF document. A copy map to a Glyph Map included in the PDF document, the glyph map indicating the shape of the plurality of characters to render and display the plurality of characters on the PDF document. A glyph information extraction unit for extracting glyph information for the at least one character from the glyph information, and a glyph table for managing glyph information to generate glyph information for the at least one character; A glyph information storage unit for storing in a glyph table and the at least one character stored in the glyph table; Wherein the glyph rendering information based on the appearance of at least one character, and wherein the character includes an insertion for inserting the at least one character rendered on the first electronic document.

In addition, the shape maintaining copy method for the characters contained in the PDF document of the electronic terminal device according to an embodiment of the present invention to at least one character among a plurality of characters included in the PDF document to the first electronic document; When a copy command is applied, a glyph map included in the PDF document, in which the glyph map stores glyph information indicating the shape of the plurality of characters for rendering and displaying the plurality of characters on the PDF document. Extracting glyph information for the at least one character from a mapping table, generating a glyph table for managing glyph information, and storing glyph information for the at least one character in the glyph table; and The at least one based on glyph information for the at least one character stored in a table And inserting the rendered at least one character on the first electronic document by rendering a shape of a character of the.

According to an embodiment of the present invention, an electronic terminal apparatus for maintaining shape copying of characters included in a Portable Document Format (PDF) document and a shape maintaining copying method for characters included in a PDF document of the electronic terminal apparatus may be included in a PDF document. When a copy command to another electronic document is authorized for the specific characters included in the document, the glyph information of the specific characters is extracted from a glyph map included in the PDF document, and the image information is extracted on a predetermined table. After storing, the shape of the specific characters is rendered on the PDF document by rendering and inserting the shapes of the specific characters into the other electronic document based on the glyph information of the specific characters stored in the glyph table. While maintaining the same as, it can be supported to be copied to other electronic documents.

1 is a diagram illustrating a structure of an electronic terminal device for maintaining shape copying of characters included in a Portable Document Format (PDF) document according to an embodiment of the present invention.

2 and 3 are diagrams for describing an electronic terminal apparatus for maintaining shape copying of characters included in a PDF document according to an embodiment of the present invention.

4 is a flowchart illustrating a shape maintaining copying method for characters included in a PDF document of an electronic terminal device according to an embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, the electronic terminal device 110 for maintaining shape copy of a character included in a PDF document according to an embodiment of the present invention includes a glyph information extracting unit 111 and a glyph information storing unit 112. ) And the character insertion unit 113.

Here, the electronic terminal device 110 for maintaining shape copy of the characters included in the PDF document according to an embodiment of the present invention, the viewing, creation or editing of electronic documents, such as desktop PC, mobile terminal, PDA, notebook, tablet PC It can be implemented based on various kinds of microprocessor-based devices that can provide functions.

When the copy instruction to the first electronic document is applied to at least one of a plurality of characters included in the PDF document, the glyph information extracting unit 111 may include a glyph map included in the PDF document. Glyph information for the at least one character is extracted from the.

Here, the glyph map refers to a mapping table in which glyph information indicating the shape of the plurality of characters is stored in order to render and display the plurality of characters on the PDF document.

The glyph information storage unit 112 generates a glyph table for managing glyph information, and stores glyph information for the at least one character in the glyph table.

The character insertion unit 113 renders a shape of the at least one character based on the glyph information of the at least one character stored in the glyph table, and renders the at least one character on the first electronic document. Insert

In this case, according to one embodiment of the present invention, each of the glyph information stored in the glyph map and an index key for indexing the glyph information are stored in correspondence with each other. When two or more identical characters are present, glyph information and index keys for the two or more identical characters may be stored in correspondence with only one of the glyph maps.

Each of the plurality of characters may be assigned an index key for indexing glyph information corresponding to each of the plurality of characters in the glyph map.

In this case, the glyph information extracting unit 111 is stored in correspondence with the same index key as the index key assigned to each of the at least one character from the glyph map based on the index key assigned to each of the at least one character. At least one glyph information may be extracted as glyph information for the at least one character.

The glyph information storage unit 112 may store the at least one glyph information in the glyph table, and the character insertion unit 113 may store the at least one glyph information based on the at least one glyph information stored in the glyph table. The shape of one character may be rendered to insert the at least one rendered character on the first electronic document.

At this time, according to an embodiment of the present invention, the electronic terminal device 110 for maintaining shape copy of the characters included in the PDF document may further include a management key generation unit 114.

When extraction of the at least one glyph information is completed, the management key generation unit 114 generates a management key for each of the at least one glyph information based on an index key corresponding to each of the at least one glyph information. A management key for each of the at least one character is generated based on an index key assigned to each of the at least one character.

In this case, the glyph information storage unit 112 may store the at least one glyph information and a management key for each of the at least one glyph information in correspondence with each other on the glyph table, and the character insertion unit 113 may store the glyph. At least one rendered on the first electronic document after rendering a shape of the at least one character with reference to glyph information stored corresponding to the same management key as a management key for each of the at least one character from a table Character can be inserted.

In addition, according to an embodiment of the present invention, the glyph information extraction unit 111 may include a duplicate confirmation unit 115 and a deduplication extraction unit 116.

The duplication checker 115 compares the index keys assigned to each of the at least one character with each other and checks whether two or more characters to which the same index key is assigned among the at least one character exist.

The deduplication extracting unit 116 is configured to, when there are two or more characters to which the same index key is assigned, is the same index key as the index key assigned to each of the at least one character from the glyph map. When extracting the at least one glyph information stored corresponding to the at least one glyph information, only one glyph information is selected and extracted as glyph information corresponding to two or more characters to which the same index key is assigned.

In addition, according to an embodiment of the present invention, the glyph information extracting unit 111 may include the plurality of characters included in the PDF document after the at least one rendered character is inserted into the first electronic document. When an additional copy command to the first electronic document is applied to at least one other character among the at least one other character, glyph information about the at least one other character may be extracted from the glyph map.

In this case, the glyph information storage unit 112 checks whether the same glyph information as the glyph information for the at least one other character is already stored on the glyph table, and thus duplicates glyph information among the glyph information for the at least one other character. The remaining glyph information except for may be additionally stored on the glyph table, and the character insertion unit 113 may be configured to store the at least one other character based on glyph information of the at least one other character stored in the glyph table. By rendering the shape of may be further inserted into the rendered at least one other character on the first electronic document.

Hereinafter, referring to FIGS. 2 and 3, an operation of the electronic terminal device 110 for maintaining shape copying of characters included in a PDF document according to an embodiment of the present invention will be described in detail.

2 and 3 are diagrams for describing the electronic terminal device 110 for maintaining shape copying of characters included in a PDF document according to an embodiment of the present invention.

First, as shown in FIG. 2, a copy command to the first electronic document 220 is performed for at least one character indicated by reference numeral 211 among a plurality of characters included in the PDF document 210 by the user. When applied, the glyph information extracting unit 111 may extract glyph information for at least one character 211 from a glyph map included in the PDF document 210.

Here, the glyph information is information on a predetermined character shape for rendering and displaying a specific character on the screen. The glyph information will be described in detail with reference to the example illustrated in FIG. 3.

As shown in FIG. 3, suppose that a character called "a" is rendered and displayed on the screen. In this case, the glyph information of “a” means coordinate information of points indicated by points in 310.

That is, as shown by the reference numeral 310, in order to render and display "a" on the screen, there may be a plurality of points having the outline of the image "a", and when these points are connected to each other, The letter a "may be displayed.

In this case, the glyph information refers to vector data expressed as coordinate values on a two-dimensional plane with respect to a plurality of points having the outline of the image “a” shown in 310.

Thus, since the glyph information for the letter "a" is composed of vector data as shown at 320, the electronic terminal device is based on the coordinate values included in the glyph information 320 for the letter "a". As shown at 330, the letter image “a” may be completely rendered and displayed on the screen.

For reference, the solid lines connecting the points indicated by the reference numeral 310 are only shown for clarity, and as described above, the glyph information 320 for the letter “a” may refer to the points indicated by the reference numeral 310. Vector data expressed in coordinate values.

In this case, the glyp map refers to a mapping table in which glyph information indicating the shape of the plurality of characters is stored to render and display the plurality of characters on the PDF document 210.

In relation to the glyph map, each glyph information stored in the glyph map and an index key for indexing the glyph information are stored in correspondence with each other, and two or more identical characters among the plurality of characters are present. In this case, only one glyph information and one index key corresponding to the two or more identical characters are stored correspondingly on the glyph map.

For example, the PDF document 210 of the embodiment of FIG. 2 may include a glyph map that stores information as shown in Table 1 below.

복수의 문자들에 대한 For multiple characters 글립Grip 정보 Information	"최"라는 문자에 대한 글립 정보Glyph information for the word "most"	"근"이라는 문자에 대한 글립 정보Glyph information for the text "root"	"데"라는 문자에 대한 글립 정보Glyph information for the text "De"	......
인덱스 키Index key	인덱스 키 1Index key 1	인덱스 키 2Index key 2	인덱스 키 3Index key 3	......

By default, the glyph map stores all the glyph information for the plurality of characters included in the PDF document 210 and an index key corresponding thereto, as shown in Table 1 above. Is a duplicate character that appears more than once on the PDF document 210, such as "desktop", "laptop", and the like, with respect to the glyph information for the character "top" on the glyph map and the corresponding character. The index keys are not stored as many times as duplicated appearances on the PDF document 210, but are stored one by one.

An index key for indexing glyph information corresponding to each of the plurality of characters in the glyph map is assigned to each of the plurality of characters included in the PDF document 210.

For example, for the character "most" of the plurality of characters included in the PDF document 210, the index key corresponding to the glyph information for the character "most" in Table 1 is "index key 1". "Index key 1" may be assigned, and for the character "root", since the index key corresponding to the glyph information for the character "root" in Table 1 is "index key 2", "index key 2" May be assigned.

Under this situation, if a copy command to the first electronic document 220 is authorized by the user for at least one character 211 indicated by reference numeral 211 of the plurality of characters included in the PDF document 210. The glyph information extracting unit 111 corresponds to the same index key as the index key assigned to each of the at least one character 211 from the glyph map based on the index key assigned to each of the at least one character 211. At least one glyph information stored and stored may be extracted.

For example, since the index key assigned to the "most" character is "index key 1", the glyph information extracting unit 111 uses the "index key 1" from the glyph map shown in Table 1 above. Glyph information can be extracted for the character " most " stored corresponding to ", " index key 2 " for the character " root " The extraction unit 111 may extract glyph information on a character of "root" stored corresponding to "index key 2" from the glyph map shown in Table 1 above. In this way, the glyph information extracting unit 111 may extract the at least one glyph information corresponding to each of the at least one character 211 from the glyph map.

In this case, the duplication checker 115 compares the index keys assigned to each of the at least one character 211 with each other to determine whether there are two or more characters to which the same index key is assigned among the at least one character 211. The deduplication extracting unit 116 may be assigned to each of the at least one character 211 from the glyph map when two or more characters among the at least one character 211 to which the same index key is assigned exist. When extracting the at least one glyph information stored corresponding to the same index key as the index key, select and extract only one glyph information as the glyph information corresponding to two or more characters to which the same index key is assigned. can do.

Relatedly, in the embodiment of FIG. 2, the letters “top” of the at least one letter 211 are letters that are duplicated more than once on the PDF document 210, such as “desktop” and “laptop”. The duplication checker 115 may confirm that the index key assigned to the letter "top" has been duplicated more than once by the words "desktop" and "laptop", and at this time, the deduplication extraction unit 116 When extracting the at least one glyph information stored corresponding to the same index key as the index key assigned to each of the at least one character 211 from the glyph map, " desktop " Instead of extracting the same two pieces of glyph information by the word "laptop", only one piece of glyph information for the letter "top" may be selected and extracted.

In this way, when the at least one glyph information is extracted from the glyph map, the management key generator 114 manages a management key for each of the at least one glyph information based on an index key corresponding to each of the at least one glyph information. May be generated, and a management key for each of the at least one character 211 may be generated based on the index key assigned to each of the at least one character 211.

In this regard, the management key generation unit 114 generates a management key for each of the at least one glyph information by applying an index key corresponding to each of the at least one glyph information as an input to a predetermined key generation function. can do.

The management key generation unit 114 also applies an index key assigned to each of the at least one character 211 as an input to the selected key generation function, thereby managing the management key for each of the at least one character 211. Can be generated.

For example, since the index key 1 corresponds to the index key corresponding to the glyph information for the character "most," the management key generator 114 applies "index key 1" to the selected key generation function as an input. Since "management key 1" can be generated as a management key corresponding to the glyph information for the character "up to", and the index key assigned to the character "up to" is also "index key 1", the management key generation unit 114 ) May generate “management key 1” with a management key corresponding to the character “up to” by applying “index key 1” as an input to the selected key generation function.

Through this, the management key corresponding to the glyph information for the character "most" and the management key corresponding to the character "most" may be the same management key as "management key 1".

As such, when generation of the management key for each of the at least one glyph information and the management key for each of the at least one character is completed, the glyph information storage unit 112 generates a glyph table for managing the glyph information. The at least one glyph information and a management key for each of the at least one glyph information may be stored in correspondence with each other on the glyph table.

For example, the management key corresponding to the glyph information for the character "most" of the at least one glyph information is generated as "management key 1", and the management key corresponding to the glyph information for the character "root" is "management". Assuming that the management key corresponding to the glyph information for the character "de" has been generated as the "management key 3", the information may be stored as shown in Table 2 below.

적어도 하나의 At least one 글Posts 립 정보Lip information	"최"라는 문자에 대한 글립 정보Glyph information for the word "most"	"근"이라는 문자에 대한 글립 정보Glyph information for the text "root"	"데"라는 문자에 대한 글립 정보Glyph information for the text "De"	......
관리 키Management key		관리 키 1Management key 1	관리 키 2 Management key 2	관리 키 3 Management key 3	......

Then, the character inserting unit 113 refers to the glyph information stored in correspondence with the same management key as the management key for each of the at least one character 211 from the glyph table, and the shape of the at least one character 211. After the rendering, as illustrated at 221, at least one character 221 rendered on the first electronic document 220 may be inserted.

For example, as a result of generating the management key for each of the at least one character 211 based on the index key assigned to each of the at least one character 211 by the management key generation unit 114, the character "Maximum". For "administrative key 1" has been generated, "administrative key 2" has been generated for the character "root", "administrative key 3" has been generated for the character "de", character insertion unit 113 is By referring to the glyph information for the character "most" stored corresponding to "management key 1" from the glyph table shown in Table 2, the shape of the character "most" is rendered on the first electronic document 220. The shape of the text "root" may be rendered and inserted on the first electronic document 220 by referring to the glyph information on the character "root" stored in correspondence with the "management key 2". "De" stored in correspondence with "management key 3" The shape of the letter “de” may be rendered and inserted on the first electronic document 220 with reference to the glyph information on the letter.

In this manner, after at least one character 221 rendered on the first electronic document 220 is inserted, at least one other character among the plurality of characters included in the PDF document 210 by the user is inserted. When an additional copy command to the first electronic document 210 is applied, the glyph information extracting unit 111 may extract glyph information for the at least one other character from the glyph map according to the above glyph information extraction method. .

The glyph information storage unit 112 may further store glyph information for the at least one other character on the glyph table according to the glyph information storage method described above. Before further storing the glyph information for a character, it may be first checked whether the same glyph information as the glyph information for the at least one other character is already stored on the glyph table.

If it is confirmed that some of the same glyph information as the glyph information for the at least one other character is already stored on the glyph table, the glyph information storage unit 112 displays duplicate glyph information on the glyph table. Since it does not need to be stored again, only the other glyph information except for the duplicate glyph information among the glyph information for the at least one other character may be additionally stored on the glyph table.

Then, the character insertion unit 113 renders the shape of the at least one other character based on the glyph information of the at least one other character stored in the glyph table according to the character insertion method described above. The rendered at least one other character may be additionally inserted into the electronic document 220.

As a result, when the electronic terminal apparatus 110 for maintaining shape copy of the characters included in the PDF document according to an embodiment of the present invention is authorized to copy to another electronic document with respect to specific characters included in the PDF document, Extracting glyph information for the specific characters from a glyph map included in the PDF document, storing the glyph information for the specific characters, and storing the glyph information for the specific characters stored in the glyph table. By rendering and inserting shapes of specific characters onto the other electronic document, the shapes of the specific characters can be copied to another electronic document while maintaining the same shape as the shape on the PDF document.

In operation S410, when a copy command to the first electronic document is applied to at least one of the plurality of characters included in the PDF document, a glyph map included in the PDF document (the glyph map may include the plurality of characters). Glyph information of the at least one character is extracted from a mapping table in which glyph information indicating the shape of the plurality of characters is stored in order to render and display the characters in the PDF document.

In step S420, a glyph table for managing glyph information is generated to store glyph information for the at least one character in the glyph table.

In operation S430, the shape of the at least one character is rendered based on the glyph information of the at least one character stored in the glyph table to insert the rendered at least one character into the first electronic document. do.

In this case, according to one embodiment of the present invention, each of the glyph information stored in the glyph map and an index key for indexing the glyph information are stored in correspondence with each other. If two or more identical characters exist, the glyph information and the index key for the two or more identical characters may be stored in correspondence with only one on the glyph map, and each of the plurality of characters may be stored in the glyph map. An index key for indexing glyph information corresponding to each of the plurality of characters may be allocated.

In this case, in step S410, at least one stored in correspondence with the same index key as the index key assigned to each of the at least one character from the glyph map based on the index key assigned to each of the at least one character. The glyph information of may be extracted as glyph information about the at least one character.

In this case, in step S420, the at least one glyph information may be stored in the glyph table, and in step S430, the shape of the at least one letter is based on the at least one glyph information stored in the glyph table. Rendering may insert the rendered at least one character on the first electronic document.

In this case, according to an embodiment of the present invention, the shape maintaining copy method for the text included in the PDF document of the electronic terminal device corresponds to each of the at least one glyph information when extraction of the at least one glyph information is completed. Generating a management key for each of the at least one glyph information based on the index key, and generating a management key for each of the at least one character based on the index key assigned to each of the at least one character; It may further include.

In this case, according to an embodiment of the present invention, the generating of the management key may include applying an index key corresponding to each of the at least one glyph information to a selected key generation function as input to each of the at least one glyph information. A management key for each of the at least one character can be generated by applying a management key for each of the at least one character by applying an input to the selected key generation function for an index key assigned to each of the at least one character. .

In this case, in step S420, the at least one glyph information and a management key for each of the at least one glyph information may be stored to correspond to each other on the glyph table, and in step S430, the at least one glyph from the glyph table may be stored. The shape of the at least one character is rendered by referring to the glyph information stored corresponding to the same management key as the management key for each of the characters of the character, and the inserted at least one character is inserted into the first electronic document. Can be.

Further, according to an embodiment of the present invention, in step S410, there are two or more characters to which the same index key is allocated among the at least one character by comparing the index keys assigned to each of the at least one character. And if there are two or more characters to which the same index key is assigned among the at least one character, from the grip map to the same index key as the index key assigned to each of the at least one character. When extracting the at least one grip information stored in a corresponding manner, the method may include selecting and extracting only one grip information as grip information corresponding to two or more characters to which the same index key is assigned.

In addition, according to an embodiment of the present invention, the shape maintaining copy method for the characters included in the PDF document of the electronic terminal device, after the rendered at least one character is inserted into the first electronic document, the PDF Extracting glyph information for the at least one other character from the glyph map when an additional copy command to the first electronic document is applied to at least one other character among the plurality of characters included in the document; Determine whether the same glyph information as the glyph information for the at least one other character is already stored on the glyph table, and display the remaining glyph information except for the duplicate glyph information among the glyph information for the at least one other character. Further storing the image and at least the one stored in the glyph table. The method may further include inserting the rendered at least one other character on the first electronic document by rendering a shape of the at least one other character based on the glyph information of one other character.

In the above, the shape maintaining copying method for the characters included in the PDF document of the electronic terminal device according to an embodiment of the present invention has been described with reference to FIG. 4. Here, the shape maintaining copy method for the characters contained in the PDF document of the electronic terminal device according to an embodiment of the present invention is an electronic terminal for maintaining the shape of the characters included in the PDF document described with reference to Figs. Since it may correspond to the configuration of the operation of the device 110, a more detailed description thereof will be omitted.

According to an embodiment of the present invention, the shape maintaining copy method for a character included in a PDF document of an electronic terminal device may be implemented as a computer program stored in a storage medium for execution by combining with a computer.

In addition, the shape maintaining copy method for the characters included in the PDF document of the electronic terminal device according to an embodiment of the present invention may be implemented in the form of program instructions that can be executed by various computer means to be recorded on a computer readable medium. have. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

In the present invention as described above has been described by the specific embodiments, such as specific components and limited embodiments and drawings, but this is provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and all the things that are equivalent to or equivalent to the claims as well as the following claims will belong to the scope of the present invention. .

Claims

If a copy command to a first electronic document is applied to at least one of a plurality of characters included in a Portable Document Format (PDF) document, a Glyph Map included in the PDF document-the glyph A map is a mapping table in which glyph information indicating a shape of the plurality of characters is stored for rendering and displaying the plurality of characters on the PDF document. An information extraction unit;

A glyph information storage unit generating a glyph table for managing glyph information and storing glyph information for the at least one character in the glyph table; And

A character insertion unit that inserts the rendered at least one character on the first electronic document by rendering the shape of the at least one character based on the glyph information of the at least one character stored in the glyph table.

Electronic terminal device for maintaining the appearance of the characters contained in the PDF document including a copy.
The method of claim 1,

The glyph map

Each glyph information stored in the glyph map and an index key for indexing the glyph information are stored in correspondence with each other, and when two or more identical characters among the plurality of characters exist, the two or more identical characters Only one glyph information and an index key are stored corresponding to each other on the glyph map.

Each of the plurality of characters

An index key for indexing glyph information corresponding to each of the plurality of characters in the glyph map is assigned,

The glyph information extraction unit

The at least one glyph information stored in correspondence with the same index key as the index key assigned to each of the at least one character from the grip map based on the index key assigned to each of the at least one character; Extracts glyph information about the characters in,

The glyph information storage unit

Storing the at least one glyph information in the glyph table,

The character insertion unit

Rendering the shape of the at least one character based on the at least one glyph information stored in the glyph table to insert the rendered at least one character on the first electronic document. Electronic terminal device for shape keeping copying.
The method of claim 2,

When extraction of the at least one glyph information is completed, a management key for each of the at least one glyph information is generated based on an index key corresponding to each of the at least one glyph information, and assigned to each of the at least one character. Management key generation unit for generating a management key for each of the at least one character based on the index key

More,

The glyph information storage unit

Storing the at least one glyph information and a management key for each of the at least one glyph information in correspondence with each other on the glyph table,

The character insertion unit

The shape of the at least one letter is rendered by referring to the glyph information stored in correspondence with the same management key as the management key for each of the at least one character from the glyph table, and the rendered information is displayed on the first electronic document. An electronic terminal apparatus for maintaining shape copying of characters included in a PDF document into which at least one character is inserted.
The method of claim 2,

The glyph information extraction unit

A duplicate confirmation unit comparing the index keys assigned to each of the at least one character with each other to determine whether two or more characters to which the same index key is assigned among the at least one character exist; And

When there are two or more characters to which the same index key is allocated among the at least one character, the at least one stored in correspondence with the same index key as the index key assigned to each of the at least one character from the glyph map When extracting one glyph information, a deduplication extractor which selects and extracts only one glyph information as glyph information corresponding to two or more characters to which the same index key is assigned.

Electronic terminal device for maintaining the appearance of the characters contained in the PDF document including a copy.
The method of claim 1,

The glyph information extraction unit

After the rendered at least one character is inserted in the first electronic document, an additional copy command to the first electronic document is executed for at least one other character among the plurality of characters included in the PDF document. If applied, extracts glyph information for the at least one other character from the glyph map,

The glyph information storage unit

Check whether the same glyph information as the glyph information for the at least one other character is already stored on the glyph table, and the remaining glyph information except for the duplicate glyph information among the glyph information for the at least one other character may be stored on the glyph table. In addition to

The character insertion unit

Further inserting the rendered at least one other character on the first electronic document by rendering a shape of the at least one other character based on the glyph information for the at least one other character stored in the glyph table. Electronic terminal device for shape keeping copy of the characters contained in the PDF document.
If a copy command to a first electronic document is applied to at least one of a plurality of characters included in a Portable Document Format (PDF) document, a Glyph Map included in the PDF document-the glyph A map is a mapping table in which glyph information indicating the shape of the plurality of characters is stored to render and display the plurality of characters on the PDF document; ;

Generating a glyph table for managing glyph information and storing glyph information for the at least one character in the glyph table; And

Inserting the rendered at least one character on the first electronic document by rendering a shape of the at least one character based on the glyph information of the at least one character stored in the glyph table;

Shape maintaining copy method for the characters contained in the PDF document of the electronic terminal device including a.
The method of claim 6,

The glyph map

Each glyph information stored in the glyph map and an index key for indexing the glyph information are stored in correspondence with each other, and when two or more identical characters among the plurality of characters exist, the two or more identical characters Only one glyph information and an index key are stored corresponding to each other on the glyph map.

Each of the plurality of characters

An index key for indexing glyph information corresponding to each of the plurality of characters in the glyph map is assigned,

Extracting the glyph information

The at least one glyph information stored in correspondence with the same index key as the index key assigned to each of the at least one character from the grip map based on the index key assigned to each of the at least one character; Extracts glyph information about the characters in,

The storing in the glyph table

Storing the at least one glyph information in the glyph table,

Inserting step

In the PDF document of the electronic terminal device to insert the rendered at least one character on the first electronic document by rendering the shape of the at least one character based on the at least one glyph information stored in the glyph table How to keep appearance for embedded text.
The method of claim 7, wherein

When extraction of the at least one glyph information is completed, a management key for each of the at least one glyph information is generated based on an index key corresponding to each of the at least one glyph information, and assigned to each of the at least one character. Generating a management key for each of the at least one character based on a predetermined index key

More,

The storing in the glyph table

Storing the at least one glyph information and a management key for each of the at least one glyph information in correspondence with each other on the glyph table,

Inserting step

The shape of the at least one letter is rendered by referring to the glyph information stored in correspondence with the same management key as the management key for each of the at least one character from the glyph table, and the rendered information is displayed on the first electronic document. A shape maintaining copy method for characters included in a PDF document of an electronic terminal device that inserts at least one character.
The method of claim 7, wherein

Extracting the glyph information

Comparing the index keys assigned to each of the at least one character with each other to determine whether two or more characters to which the same index key is assigned among the at least one character exist; And

When there are two or more characters to which the same index key is allocated among the at least one character, the at least one stored in correspondence with the same index key as the index key assigned to each of the at least one character from the glyph map When extracting one glyph information, selecting and extracting only one glyph information as glyph information corresponding to two or more characters to which the same index key is assigned;

Shape maintaining copy method for the characters contained in the PDF document of the electronic terminal device including a.
The method of claim 6,

After the rendered at least one character is inserted in the first electronic document, an additional copy command to the first electronic document is executed for at least one other character among the plurality of characters included in the PDF document. If applicable, extracting glyph information for the at least one other character from the glyph map;

Check whether the same glyph information as the glyph information for the at least one other character is already stored on the glyph table, and the remaining glyph information except for the duplicate glyph information among the glyph information for the at least one other character may be stored on the glyph table. Storing in addition to; And

Further inserting the rendered at least one other character on the first electronic document by rendering a shape of the at least one other character based on the glyph information for the at least one other character stored in the glyph table. Steps to

Shape keeping copying method for the characters contained in the PDF document of the electronic terminal device further comprising.
A computer-readable recording medium having recorded thereon a program for performing the method of any one of claims 6 to 10.
A computer program stored in a storage medium for executing the method of any one of claims 6 to 10 in combination with a computer.