KR20160037457A - digital document management system and method - Google Patents

Abstract

The present invention relates to a digital document management system and a method thereof, and more particularly, to a digital document management system and a method thereof for managing a digital document through a separate digital document mobile terminal unit in a mobile device, will be.
The digital document management system and method according to the present invention has the effect of personalizing a digital document and provides a method of outputting, indexing, searching, copying, and personalizing a digital document according to a payment. It also provides similar digital documents based on the user's existing purchased digital documents, tailored to the user's preferences, provided with a community based on digital documents, and able to obtain discussions and other supplementary materials

Description

[0001] Digital document management system and method [0002]

The present invention relates to a digital document management system and a method thereof, and more particularly, to a digital document management system and a method thereof for managing a digital document through a separate digital document mobile terminal unit in a mobile device, will be.

Generally, a digital document may include information such as text, image, and multimedia as information processed digitally by a computer.

Since digital documents are easy to edit, store, and copy, they can provide users with high convenience. For example, a user can browse a desired digital document or create and edit a new digital document using an application program such as a word or a work seed.

Such digital documents can easily be cloned without loss of information, so they can easily be exposed to illegal activities such as unauthorized copying, illegal use, and illegal use.

Therefore, a security system is required to protect digital documents from unlawful acts in order to ensure safe and reliable use of digital documents. In recent years, an online document providing system capable of using a digital document at a remote location through a high-speed network such as the Internet has become commonplace. In such an online document providing system, the risk of illegal leakage or use of a digital document is increased Therefore, more stringent security is required.

Generally, in order to browse and edit a digital document provided from an online document providing system in a user terminal, an application program for reproducing the digital document, an e-viewer, must be provided in the user terminal. At this time, since the digital document reproduced by the viewer is likely to be illegally leaked or exposed to use, a security agent for restricting the use of the digital document according to a user's authority should be provided in the user terminal.

The complementary agent is installed in a user terminal at the time of opening an online document providing service, and whenever a request for use of a digital document is made, the security agent queries a security policy and performs a security function by controlling the viewer according to the security policy have.

The configuration and function of the security agent differ from one security company to another providing security agents. Today, many security companies provide a security agent having a unique configuration and functions. In general, a plurality of different types of security agents are installed in user terminals.

However, since the security agent installed in the terminal and the user constantly communicates with the security server connected to the security server in order to acquire the security policy for the digital document, the communication load of the user terminal is increased.

In order to solve the above problems, Korean Patent Registration No. 10-1151211, entitled " Security digital document providing method and system, security package generating apparatus and security package executing method " However, in such a case, the conventional technique according to FIG. 1 also incurs the inconvenience of accessing the online secure digital document providing system even when editing, copying and outputting the document in the user terminal, happened.

In order to solve the above problem, Korean Patent Registration No. 10-1105851 entitled " Method and apparatus for importing content "has been disclosed. In this case, however, the user was unable to re-read the document.

(Patent Document 1) Korean Patent Registration No. 10-1151211 (2012, 05, 23) (Document 2) Korean Patent Registration No. 10-1105851 (2012,01,06)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and it is an object of the present invention to provide a mobile terminal that manages a digital document through a separate mobile terminal unit, And to provide a system and a method for solving the problem of communication with a mobile terminal.

Another object of the present invention is to provide a digital document management system and method capable of outputting, indexing, searching, copying, and personalizing according to a payment condition.

Another purpose of the present invention is to provide a function of recommending a digital document by analyzing a usage pattern of a user.

It is also intended to provide another secure community for digital documents.

According to an aspect of the present invention, there is provided a digital document management system (20) including a communication network interface unit (110) for transmitting and receiving a communication network with a user's mobile device (10) A user authentication unit 120 for authenticating a user from the mobile device 10 and a list provider 125 for providing a list of digital documents from the mobile device 10, ), A digital document is provided through the digital document output restriction, index restriction, search restriction, capture restriction, copy restriction, mouse drag and drop restriction, source storage restriction, paste restriction, A security information generating unit 130 for downloading the digital document, a user who can attach an image, a character, or an Internet address to a purchaser in order to donate and transfer the digital document to another person An encryption unit 140 for encrypting the digital document generated through the security information generation unit 130, a digital document DB 145a or a user authentication information DB 145b or a security information DB 145c, A payment unit 150 for charging the digital document usage fee in providing the digital document, and a communication unit 150 connected to the communication network interface unit 110, the user registration unit 115, the user authentication unit 120, A list providing unit 125, a security information generating unit 130, a personalization unit 135, an encryption unit 140, a database 145, and a payment unit 150 .

The digital document management system 20 further includes a copyright processing unit 155 for making a producer and a copyright holder of the digital document pay a royalty after the digital document usage fee is paid through the settlement unit 150 And the digital document management system 20 further includes a community unit 160 for establishing a community room available only to each digital document downloaded by the users who have downloaded the digital document.

In addition, the digital document management system 20 allows the users to upload a re-processed digital document when the community room of each downloaded digital document utilizing the community unit 160 is used. And provides the recommendation list in accordance with the classification of the past digital document used by the user in providing the digital document list through the user interface 125. [

In addition, the digital document management system 20 is configured to automatically delete a digital document after expiration of a digital document whose storage time limit has been set.

In addition, the digital document management system 20 is configured to allow at least one of a name, a name, and a word included in a digital document to be modified in providing a digital document.

The digital document management method further includes the steps of: executing a mobile digital document application by the user; authenticating the user with the mobile device (10); providing a list of digital documents to the mobile device (10) Receiving a request message requesting a selected digital document from a list, extracting the provisioned digital document through a database 145, limiting the output based on a user's selection, A step of providing a personalized digital document through a restriction, a capture restriction, a copy restriction, a mouse drag and a drop restriction, a source storage restriction, a paste restriction, a storage time limit, And transmitting the digital document to the user's mobile digital document application It consists of a gong.

The method may further include receiving the user authentication information when the user executes the application, authenticating the user based on the received user authentication information and the previously stored user authentication information, and authenticating the user based on the authentication information, And setting the presence / absence of re-authentication at the time of authentication.

The step of providing the digital document list to the mobile device 10 may include the steps of acquiring the past digital document purchase information of the user and extracting features of the past digital document purchase information, And a step of recommending the user to the re-searched list.

The digital document management system and method according to the present invention having the above-described constitution and function have the effect of personalizing a digital document, and a method of outputting, indexing, searching, copying, . It also provides similar digital documents based on the user's existing purchased digital documents, tailored to the user's preferences, provided with a community based on digital documents, and able to obtain discussions and other supplementary materials

1 is a block diagram showing a configuration of a digital document management system and a method thereof.
2 is a block diagram illustrating a digital document management system and its illustrated digital document management system.
3 is a flowchart showing a flow of a digital document management system and a method thereof.
4 is a flow chart illustrating the detailed steps of document selection of the digital document management system and method thereof.
5 is a flowchart illustrating the detailed steps of providing a recommendation list of a digital document management system and a method thereof.
FIG. 6 is an exemplary diagram illustrating a digital document management system and its method of providing a donation, transferring characters, and an Internet homepage address.
FIG. 7 is an exemplary diagram illustrating a digital document management system and its method of providing a donation and transferring characters and images. FIG.
Fig. 8 is an exemplary diagram illustrating modifications of the name, the name, and the words of the digital document management system and its method.
9 is an exemplary diagram illustrating a community available to a user who purchases a document in each digital document of the digital document management system and method thereof.

According to an aspect of the present invention, there is provided a system and method for managing a digital document according to an embodiment of the present invention. The system includes a communication network interface unit for transmitting / receiving a communication network with a user's mobile device, A user registration unit 115 for registering a user from the mobile device 10, a user authentication unit 120 for authenticating a user from the mobile device 10, A limitation on the output of the digital document, an index restriction, a search restriction, a capture restriction, a copy restriction, a mouse drag and drop restriction, a source storage restriction, a paste restriction, A security information generating unit 130 for providing a digital document through a time limit, and a security information generating unit 130 for downloading the digital document, An encryption unit 140 for encrypting the digital document generated through the security information generation unit 130, a digital document DB 145a or a user authentication information DB 145b A settlement unit 150 for making a settlement of the digital document use fee in providing the digital document and a settlement unit 150 for providing the digital document in response to the request from the communication network interface unit 110, A controller 145 for controlling the user authentication unit 120, the list providing unit 125, the security information generating unit 130, the personalization unit 135, the encryption unit 140, the database 145, (165).

The digital document management system 20 further includes a copyright processing unit 155 for making a producer and a copyright holder of the digital document pay a royalty after the digital document usage fee is paid through the settlement unit 150 And the digital document management system 20 further includes a community unit 160 for establishing a community room available only to each digital document downloaded by the users who have downloaded the digital document.

In addition, the digital document management system 20 allows the users to upload a re-processed digital document when the community room of each downloaded digital document utilizing the community unit 160 is used. And provides the recommendation list in accordance with the classification of the past digital document used by the user in providing the digital document list through the user interface 125. [

In addition, the digital document management system 20 is configured to automatically delete a digital document after expiration of a digital document whose storage time limit has been set.

In addition, the digital document management system 20 is configured to allow at least one of a name, a name, and a word included in a digital document to be modified in providing a digital document.

The digital document management method further includes the steps of: executing a mobile digital document application by the user; authenticating the user with the mobile device (10); providing a list of digital documents to the mobile device (10) Receiving a request message requesting a selected digital document from a list, extracting the provisioned digital document through a database 145, limiting the output based on a user's selection, A step of providing a personalized digital document through a restriction, a capture restriction, a copy restriction, a mouse drag and a drop restriction, a source storage restriction, a paste restriction, a storage time limit, And transmitting the digital document to the user's mobile digital document application It consists of a gong.

The method may further include receiving the user authentication information when the user executes the application, authenticating the user based on the received user authentication information and the previously stored user authentication information, and authenticating the user based on the authentication information, And setting the presence / absence of re-authentication at the time of authentication.

The step of providing the digital document list to the mobile device 10 may include the steps of acquiring the past digital document purchase information of the user and extracting features of the past digital document purchase information, And a step of recommending the user to the re-searched list.

Hereinafter, the digital document management system and method according to the present invention will be described in detail with reference to embodiments.

1 is a block diagram showing a configuration of a digital document management system and a method thereof.

As shown in FIG. 1, the digital document management system and method of the present invention can access a user mobile device 10 through a communication network and provide a digital document providing service upon request from the user mobile device 10 .

The digital document management system 20 may be implemented as at least one server. The digital document management system 20 can communicate with each other through a communication network, for example, a wide area network such as the Internet, or a local area network. However, this embodiment is not limited.

The digital document management system 20 can manage the flow of the digital document providing service as a whole. The digital document management system 20 can provide a user interface (e.g., a web page) for providing a digital document to a user mobile device connected through a communication network. The digital document management system 20 performs functions such as user registration, user authentication, digital document list provisioning, security information customization, personalized information setting, and purchase document community provision based on the user's mobile device 10 interface Can be performed.

The digital document management system 20 can also generate an encrypted digital document corresponding to the digital document selected by the user and transmit the encrypted digital document to the user's mobile device 10. The configuration of the digital document management system 20 is as shown in FIG.

2 is a block diagram illustrating a digital document management system and its illustrated digital document management system.

2, the digital document management system 20 includes a communication network interface unit 110, a user registration unit 115, a user authentication unit 120, a list providing unit 125, a security information generating unit 130, A personalization unit 135, an encryption unit 140, a database 145, a settlement unit 150, a copyright processing unit 155, a community unit 160, and a control unit 165.

The communication network interface unit 110 may provide a communication network interface function so that the digital document management system 20 can interoperate with the user mobile device 10 through a communication network, for example, the Internet. Each part of the digital document management system 20 can exchange data with the user mobile device 10 through the communication network interface unit 110. [

The user registration unit 115 may receive the user authentication information of the user from the user mobile device 10 connected via the communication network and store the received user authentication information in the authentication information DB 145b of the database 145.

That is, the user registration unit 115 can perform a function of registering a user by storing user authentication information.

For this purpose, the user registration unit 115 may provide a user registration web page that allows the connected user mobile device 10 to input user authentication information and to input user authentication information. The user authentication information may be a user certificate, a certificate password or a user ID / password issued by a reliable period. The user registration unit 115 may store the inputted user authentication information in the authentication information DB 145b of the database 145. [

The user authentication unit 120 performs a function of authenticating the user mobile device 10 and the user connected to the digital document management system 20 based on the user authentication information stored in the authentication information DB 145b. For example, the user authentication unit 120 receives the user authentication information from the user mobile device 10 connected via the communication network, compares the received user authentication information with the user authentication information stored in the authentication information DB 145b, Depending on the match, the user may be authenticated to the service or may be denied.

To this end, the user authentication unit 120 may provide a user authentication web page that allows the connected user mobile device 10 to input user authentication information and to input user authentication information. For example, the user authentication web page may request to submit a user certificate and enter a certificate password. In this case, the user authentication unit 120 may receive the user certificate from the user mobile device 10 and perform authentication based on the received user certificate.

The list providing unit 125 may perform a function of providing a digital document list from the authenticated user mobile device 10 for a user determined to be a legitimate user by the user authenticating unit. More specifically, the list providing unit 125 generates a list of digital documents, which is a list of digital documents stored in the digital document DB 145a of the database 145, and displays the generated list of digital documents on a web page have.

The security information generating unit 130 may generate security information of the user for the requested digital document. The security information may include a user's right to use the digital document and restrictions for preventing leakage. The usage rights include, for example, a user's output restriction on the digital document, an index restriction, a search restriction, a capture restriction, a copy restriction, a mouse drag and drop restriction, a source storage restriction, Limitations to prevent a digital document from being illegally exported.

The security information generation unit 130 generates security information in the security information DB 145c based on the user authentication information of the authentication information DB 145b and the digital document information of the digital document DB 145a, And then generate the security information requested by the user using the extracted security policy.

The personalization unit 135 functions to enable the user to further modify the requested digital document. For example, it is possible to provide services such as text and image, or providing a specific homepage to a third party as long as the user purchases the digital document and does not change the content of the digital document when granting and transferring it to a third party.

At this time, the personalization unit 135 can modify or change the digital document within a range that the digital document is modified, such as image addition, character addition, homepage setting, telephone number setting, and text message setting, Do.

For example, the personalization unit 135 may be provided with characters and images on either side of the digital document, and the characters and images may be arbitrarily set by the presenter or the assignee, It is possible to provide additional services within the limit of not damaging the contents of the digital document such as moving to a specific homepage, providing a telephone number, providing a text message window, enlarging a specific image.

The encryption unit 140 may generate an encryption key and encrypt the digital document using an encryption key. The encryption key may be a secret key. The encryption unit 140 may generate an encryption key, which is a secret key, and may encrypt the digital document included in the request message received from the digital document management system 20, using the generated encryption key.

The database 145 functions to store information necessary for performing functions of the digital document management system 20 and includes a digital document DB 145a, an authentication information DB 145b, and a security information DB 145c .

The digital document DB stores a digital document and can provide the digital document at the request of the user.

The authentication information DB stores user authentication information for using the digital document management system 20 and performs user authentication using the authentication information DB 145b when accessing the digital document management system 20 of the mobile device 10 . In addition, personal information such as digital purchasing list information of the purchaser after the user authentication information is stored.

The security information DB can be used to provide a digital document in the form of output restriction, index restriction, search restriction, capture restriction, copy restriction, mouse drag and drop restriction, source storage restriction, paste restriction, Can store the security policy of.

For example, the database 145 may store user authentication information and digital documents and security information. The database 145 may include a digital document DB 145a or an authentication information DB 145b or a security information DB 145c. Thus, the database 145 can provide information according to a user's request.

The settlement unit 150 may perform a function of paying a fee when a user downloads and uses a digital document.

For example, when requesting a digital document, the user downloads a digital document through payment, and can also use the service through settlement even when utilizing the security information generation unit 130 and the personalization unit 135 . At this time, in the case of the digital document in which the security information is generated through the security information generation unit 130, the amount can be changed according to the number of the limited termination, and the amount can be changed depending on whether the personalization unit 135 is utilized .

 The copyright processing unit 155 can provide a part of the payment amount to the copyright owner or the producer of the digital document when the digital document is downloaded by the payment unit 150. [

The community unit 160 may provide a non-public community for each downloaded digital document through payment. The community is generated in each digital document, and the digital document is provided to the purchaser at the time of purchase through the settlement unit 150. At this time, the purchaser can make a community with each digital document and a user who purchases another digital document, and it is possible to modify and upload in the community according to the security information of the digital document

For example, the community unit 160 provides a community limited to the purchaser who purchased the digital document, and can modify and upload the community according to the security information setting of the digital document.

The control unit 165 includes a communication network interface unit 110 of the digital document management system, a user registration unit 115, a user authentication unit 120, a list providing unit 125, a security information generating unit 130, The encryption unit 140, the database 145, the settlement unit 150, the copyright processing unit 155, and the community unit 160 and the entire service flow. The control unit 165 receives the digital document request message requesting the digital document selected by the user from the user mobile device 10 and extracts the requested digital document from the digital document DB 145a of the database 145 can do.

The control unit 165 generates security information through the security information generation unit 130 and generates a personalized digital document through the personalization unit 135. The encryption unit 140 encrypts the extracted digital document, To encrypt the digital document.

The controller 165 interlocks the respective parts according to a user's request and transmits the generated digital document to the user's mobile device 10.

3 is a flowchart showing a flow of a digital document management system and a method thereof.

As shown in FIG. 3, the digital document management system and method according to the present invention perform the following steps when a user requests a digital document.

The user executes an application of the user mobile device 10 to acquire a digital document (S310). After that, the user executes an authentication process for using the digital document management system. At this time, the user authentication step may request user authentication information, such as a user certificate, from the user's mobile device 10, and store the user authentication information transmitted from the user mobile device 10 in the authentication information DB 145b So that the user and the user mobile device 10 can be registered.

Then, the user mobile device 10 registered in the digital document management system 20 can access the digital document management system 20 in order to receive the digital document. The digital document management system 20 requests user authentication information from the connected user mobile device 10, receives the user authentication information transmitted from the user mobile device 10, And a user authentication step (S320) of authenticating the user and the user mobile device 10 based on the user authentication information.

After the use authentication step S320, if the authentication is normally completed, the digital document management system 20 performs a digital document list providing step S330 for providing a digital document list to the user mobile device 10. [ The digital document management system 20 can provide the user mobile device 10 with a list of digital documents stored in the digital document DB 145a in the form of a web page. At this time, the digital document management system 20 may provide a search function for searching digital documents by category or using keywords.

The user can select a desired digital document from the list of digital documents displayed on the user mobile device 10. [ Then, the user mobile device 10 can transmit a digital document request message to the digital document management system 20 requesting the digital document selected by the user. Then, the digital document management system 20 can receive the digital document request message transmitted from the user mobile device 10 (S340)

Subsequently, the digital document management system 20 can extract the digital document requested by the user mobile device 10 from the digital document DB 145a based on the digital document request message (S350).

Next, the digital document management system 20 performs a digital document security information generation step (S360) in which the extracted digital document can be reproduced according to the security information. At this time, the digital document may be limited to the output restriction, the index restriction, the search restriction, the capture restriction, the copy restriction, the mouse drag and drop restriction, the source storage restriction, Time limit, and so on.

Next, the digital document management system 20 performs a digital document encryption step (S370) of encrypting the digital document from which the extracted security information is generated. And a document transmission step of transmitting the generated digital document to the user mobile device 10 (S380).

4 is a flow chart illustrating the detailed steps of document selection of the digital document management system and method thereof.

The digital document management system 20 is provided with a digital document list providing step S410. Then, the user goes through a digital document selection step (S420) for selecting a digital document to be desired in the mobile device 10.

Thereafter, it is necessary to limit the output limit, index limit, search limit, capture limit, copy limit, mouse drag and drop limit, source save limit, paste limit, The digital document personalization information setting step S430 is performed in which the contents of the digital document are not modified or changed when the digital document is donated and transferred to another user. In performing the digital document personalized information setting step S430, the user can set the output limit, the index limit, the search limit, the capture limit, the copy restriction, the mouse drag, and the drop in accordance with his / You can not only restrict, limit the source storage, limit the paste, limit the storage period, but also allow the third party to include images and text within the donation and transfer of digital documents without modification or alteration. .

for example. A third party who has donated and transferred the digital document can check the images and text inserted by the presenter or the transferor on either side of the digital document. If selected, the presenter can enlarge the image, send a text message, send a text message, Or the contents selected and set by the assignor.

Then, the user performs a payment step S440 for using the digital document. Then, the digital document having been settled is transmitted to the digital document management system 20, and the digital document management system 20 receives the digital document request message (S450) .

5 is a flowchart illustrating the detailed steps of providing a recommendation list of a digital document management system and a method thereof.

The digital document management system and method of the present invention can provide a recommendation list when providing a list of users.

After the step S510 of providing the digital document list to the user's mobile device 10, the user acquiring the past purchase order list information from the authentication information DB 145b is performed (S520). Thereafter, a past digital document feature extraction step (S530) for extracting features of the past digital document is performed. At this time, the past digital document feature extraction is a step of extracting the type of the digital document, the type of the copyright owner, the publisher, or the document, and is performed based on the purchased digital document purchase information of the user.

The similar document search step S540 is performed with the extracted features based on the extracted features of the digital document. Then, a recommendation list providing step (S550) of providing a list of similar documents retrieved from the past digital document feature to the user may be performed, and a digital document selecting step (S560) may be performed based on the recommendation list.

By providing such a recommendation list, the user can more easily receive a digital document suitable for his / her taste.

FIG. 6 is an exemplary view for explaining the digital document management system and its method of providing a donation, transferring letters, and an Internet homepage address, and FIG. 7 is a diagram illustrating a digital document management system and its method, Fig.

6 to 7, the digital document management system and method according to the present invention can be implemented by a user who purchases a digital document to a third party and, when a donation or transfer is made, An image or the like can be inserted.

For example, when a user purchases a digital document and inserts letters and images on a donation and a transfer to a third party, when a third party selects characters and images inserted by the user in the digital document, the user moves the specific page, Such as providing a window, enlarging an image, providing an image, and so on.

In addition, the characters and images inserted by the user in the donation and transfer to the third party can be selected by the user when the donation and transferring are set up to the third party, and whether the characters and images are stored.

Fig. 8 is an exemplary diagram illustrating modifications of the name, the name, and the words of the digital document management system and its method.

The digital document management system and method thereof according to the present invention provides a service that can modify the name, name, and word of each digital document only to the user who purchased the digital document.

For example, a user may modify a name, a name, and a word within a range set by a copyright holder or a maker of a digital document purchased by the user. At this time, the user can donate and transfer the digital document modified with the name, the name and the word of the specific word to the third party, and the modified second digital document can be set by re-setting and uploading, You can protect copyright.

9 is an exemplary diagram illustrating a community available to a user who purchases a document in each digital document of the digital document management system and method thereof.

A digital document management system and method thereof according to the present invention provides a service that allows a user who purchased a digital document to make a community for each digital document.

At this time, the community unit 160 of the digital document management system 20 provides respective communities to users who purchase digital documents, and users purchasing the same digital document provide a community for one digital document It is also possible to upload a digital document that has been modified and supplemented by the digital document through the community based on the setting of the digital document owner or creator.

The digital document management system and method according to the present invention having the above-described constitution and function have the effect of personalizing a digital document, and a method of outputting, indexing, searching, copying, . It also provides similar digital documents based on the user's existing purchased digital documents, tailored to the user's preferences, provided with a community based on digital documents, and able to obtain discussions and other supplementary materials

It will be apparent to those skilled in the art that various modifications may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims. And changes may be made without departing from the spirit and scope of the invention. Accordingly, modifications of the embodiments of the present invention will not depart from the scope of the present invention.

10: Mobile device 20: Digital document management system
110: communication network interface unit 115: user registration unit
120: user authentication unit 125: list provider
130: security information generation unit 135: personalization unit
140: encryption unit 145:
145a: Digital document DB 145b: Authentication information DB
145c: security information DB 150: settlement unit
155: copyright processing unit 160:
165:

Claims (10)

In the digital document management system 20,
A communication network interface unit 110 for transmitting and receiving a communication network with the user's mobile device 10;
A user registration unit 115 for registering a user from the mobile device 10;
A user authentication unit 120 for authenticating a user from the mobile device 10; And
A list provider 125 for providing a list of digital documents from the mobile device 10;
Security that provides a digital document through output restriction, index restriction, search restriction, capture restriction, copy restriction, mouse drag and drop restriction, source storage restriction, paste restriction, An information generating unit 130;
A personalization unit 135 for allowing the purchaser to attach an image, a character, or an Internet address when giving and giving away to another person in downloading the digital document;
An encryption unit 140 for encrypting the digital document generated through the security information generation unit 130 and the personalization unit 135;
A database 145 including the digital document DB 145a or the user authentication information DB 145b or the security information DB 145c;
A settlement unit (150) configured to settle the digital document usage fee in providing the digital document; And
The communication network interface unit 110, the user registration unit 115, the user authentication unit 120, the list providing unit 125, the security information generating unit 130, the personalization unit 135, the encryption unit 140, 145), and a control unit (165) for controlling the settlement unit (150).
The method according to claim 1,
The digital document management system (20) further includes a copyright processing unit (155) for making a producer and a copyright holder of the digital document pay royalties after the digital document use fee is paid through the settlement unit System (20).
The method according to claim 1,
The digital document management system (20) further includes a community unit (160) for establishing a community room available only to each digital document downloaded by the users who download the digital document. 20).
The method of claim 3,
The digital document management system (20) allows users to upload a re-processed digital document when using the community room of each downloaded digital document utilizing the community unit (160).
The method according to claim 1,
Wherein the digital document management system (20) provides a recommendation list in accordance with classification of a past digital document used by a user when providing a list of digital documents through the list providing unit (125).
The method according to claim 1,
Wherein the digital document management system (20) automatically causes the digital document to be destroyed upon expiration of the digital document after the storage period is set.
The method according to claim 1,
The digital document management system (20) is configured to allow at least one of a name, a name, and a word included in a digital document to be modified in providing a digital document.
A digital document management method comprising:
Executing a mobile digital document application by a user;
Authenticating a user with the mobile device (10);
Providing a digital document list to the mobile device (10);
Receiving a request message requesting a selected digital document from the digital document list;
Extracting said provisioned digital document via a database (145);
The extracted digital document can be used for various purposes such as output restriction, index restriction, search restriction, capture restriction, copy restriction, mouse drag and drop restriction, source storage restriction, paste restriction, Providing a personalized digital document through the personal digital assistant; And
And transmitting the generated digital document to the user's mobile digital document application according to the selection of the user.
9. The method of claim 8,
Receiving user authentication information when the user executes an application; And
Authenticating a user based on the received user authentication information and pre-stored user authentication information; And
And a step of allowing the user who has authenticated based on the authentication information to set whether or not to re-authenticate at a later re-execution.
9. The method of claim 8,
The step of providing the digital document list to the mobile device (10)
Acquiring the past digital document purchase information of the user;
Extracting features of the past digital document purchase information;
Re-searching the list with the extracted features; And
And recommending a re-searched list to a user.

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