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CN101377731A - Method and terminal for controlling document print - Google Patents

Method and terminal for controlling document print Download PDF

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Publication number
CN101377731A
CN101377731A CNA2008102225108A CN200810222510A CN101377731A CN 101377731 A CN101377731 A CN 101377731A CN A2008102225108 A CNA2008102225108 A CN A2008102225108A CN 200810222510 A CN200810222510 A CN 200810222510A CN 101377731 A CN101377731 A CN 101377731A
Authority
CN
China
Prior art keywords
document printing
document
printing
approval information
treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2008102225108A
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Chinese (zh)
Inventor
亓文法
卢书一
杨斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peking University
Peking University Founder Group Co Ltd
Beijing Founder Electronics Co Ltd
Original Assignee
Peking University
Peking University Founder Group Co Ltd
Beijing Founder Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peking University, Peking University Founder Group Co Ltd, Beijing Founder Electronics Co Ltd filed Critical Peking University
Priority to CNA2008102225108A priority Critical patent/CN101377731A/en
Publication of CN101377731A publication Critical patent/CN101377731A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a method and a terminal used for controlling the files printing. The method comprises: firstly a document format is set to be the preset document format, and when a user terminal carries out a printing operation, the user terminal acquires the content data related to the documents to be printed and judges that whether the unapproved document has a preset document format or not, if not, the document format to be printed is converted to the preset document format, and then an approval flow is started; then the approved document can be printed and outputted according to the approval information. The invention solves the problem that the amount of the document format to be approved is too much, which makes the approval of the document format difficult. By converting the formats of all documents to be printed into a unified format, the user terminal with the approval right can approve all documents content by installing only one application program system.

Description

A kind of method and terminal of controlling the document printing
Technical field
The present invention relates to the document printing techniques field, relate in particular to a kind of method and terminal that document is printed of controlling.
Background technology
Along with the development of ecommerce and E-Government, relevant departments such as enterprises and institutions, Party and government offices and national security will handle a large amount of written materials, and this is comprising vital documents such as contract, concerning security matters.In addition, a lot of texts not only exist with digital form, and it also can pass through approach such as printing, duplicating and propagate with the form of paper.And along with the fast development of digitizing technique, it is quite general that this mode has become, and this also makes a lot of important or confidential information let out with the form of paper document.Therefore, study print procedure control, the content safety protection of this class text file and propagating and trace to the source that to follow the trail of be an important problem.Solution to the problems described above is will treat that document printing is sent to the terminal with power of examination and approval and examines before document is printed in the prior art, examine the document storing passed through on printing server, then printer or the described document of network printer printout by linking to each other with server.
Said method has solved the information security issue of foregoing important documents to a certain extent, and making does not have the document through examining can't carry out normal printout.But still have problems, as: the Doctype that can examine is limited.Because all files all will be examined through relevant departments before printing.Development along with informationization technology, various application systems are arisen at the historic moment, corresponding privately owned formatted file also grows with each passing day, especially for some special dedicated service systems, its use may be relatively complicated, need special skills training, not all client all is fit to install.And for the consideration of information security, all these documents all will be included the controlled scope of safety in.For this reason, the user terminal with power of examination and approval need be installed all relevant application systems just can check document content, has therefore strengthened the difficulty of review operation.
Summary of the invention
The invention provides a kind of method and terminal that document is printed of controlling, in order to solve the various problem that the extensive application system will be installed when examining that causes of form of being examined document in the prior art.
The embodiment of the invention provides a kind of method that document is printed of controlling, and may further comprise the steps:
A. when the client executing printing, the document printing data are treated in intercepting, if the described document printing for the treatment of is not through examining, then detect and describedly treat whether the file layout of document printing is the document format of presetting, if then change step C over to, if not, then change step B over to;
B. the described document printing for the treatment of is converted to default document format;
C. initiate approval process, and according to the described document printing for the treatment of of relevant approval information printout.
Wherein, if the described document printing for the treatment of is through examining, then according to the relevant described document printing for the treatment of of approval information printout.
Described approval process specifically comprises: treat that document printing is sent to the user terminal with power of examination and approval and examines after will changing, and the mark approval information, approval information is embedded described treating in the document printing.
Wherein comprise: from database server, obtain the described relevant approval information for the treatment of document printing, and treat document printing according to described approval information printout according to the relevant described document printing for the treatment of of approval information printout.
Wherein, treat that according to described approval information printout document printing comprises:
Judge whether the described accumulative total printing umber of document printing for the treatment of has reached the upper limit that allows to print umber;
If do not reach the upper limit, whether the page number of then judging current print parameters setting has exceeded the page number scope that allows in the approval information, reset print parameters if exceed the page number scope of permission then be as the criterion, if the page number scope that does not exceed permission is then treated document printing with the print parameters printout that is as the criterion with approval information.
The embodiment of the invention also provides a kind of terminal that document is printed of controlling, and comprises
First module, be used for when the client executing printing, document printing is treated in intercepting, if the described document printing for the treatment of is not through examining, then detect and describedly treat whether the file layout of document printing is the document format of presetting, if will treat that then document printing is sent to the printout module, if not, then the described document printing for the treatment of is sent to modular converter;
Modular converter is used for the described file layout of document printing for the treatment of is converted to default document format;
Monitoring module links to each other with modular converter, is used to initiate approval process, and document printing is treated in printout according to approval information.
Described first module also is used for treating that when intercepting document printing when having examined, then is sent to the printout module with the described document printing for the treatment of.
Described monitoring module comprises: examine process unit, print-out unit.
Examine process unit, be used for treating that with described document printing is sent to the user terminal with power of examination and approval and examines and mark approval information, store described approval information;
Print-out unit is according to the described document printing for the treatment of of approval information printout.
Because among the present invention, the document unification that all kinds need be examined is converted to default document format, such as pdf document, thereby increased can controlled file scope, and making the process simplification examine, the user terminal that has the power of examination and approval in embodiments of the present invention only need be installed a kind of application system and can examine all pending trial certification shelves.
Added the document content checking process in this method, can control the printing of client, and be not limited only to control the printer or the network printer that links to each other with private server, make all documents all reach safe controlled purpose, also added the document content integrated authentication in addition, thereby make all can cause document printout normally, strengthened the security of document content to a certain extent any illegally distorting of examining the back document.
The present invention's tracked information in treating document printing also in addition, when document is illegally duplicated, the source that then can find document to reveal by the tracked information of prior insertion.
Description of drawings
Fig. 1 is a kind of process flow diagram of controlling document printing method of the embodiment of the invention;
The process flow diagram that Fig. 2 examines for embodiment of the invention document;
Fig. 3 prints auditing flow figure for embodiment of the invention document;
Fig. 4 is a kind of installation drawing of controlling the document printing terminal of the embodiment of the invention;
Fig. 5 is embodiment of the invention printout modular device figure;
Fig. 6 is an embodiment of the invention approval information detecting unit installation drawing;
Fig. 7 is an embodiment of the invention print-out unit installation drawing.
Embodiment
In embodiments of the present invention, preestablishing some file layouts is the specific form of examining, when the client executing printing, then intercept and capture the relevant content data for the treatment of document printing, and detect the described document printing for the treatment of and whether examined, if not through examining, then will not that the document printing for the treatment of of default document format is converted to default document format, initiate approval process then; If be default document format, then directly initiate approval process, the relevant described document printing for the treatment of of approval information printout of basis after examining.If having carried out examining then, the document of intercepting printed output according to relevant approval information.
Below in conjunction with Figure of description the specific embodiment of the present invention is elaborated.
As shown in Figure 1, a kind of method of controlling the document printing may further comprise the steps, selecting the PDF document format in the present embodiment is that example describes (embodiment of the invention is not limited in the PDF document, can be Microsoft Office document, POSTSCRIPT, picture format and other any electronic data file form that can support the software systems output of printing function):
Step 101 when the user carries out printing in application program, is intercepted and captured the relevant print data for the treatment of document printing, detection treats whether document printing examined, if carried out examining then go to step 105,, then change step 102 over to if do not examine.
When the user in application program system, the selective printing machine is intercepted and captured related data to be printed after clicking " determining " button, the method for intercepted data can be:
(1) treats document printing data, the then corresponding Tiff file that obtains pdf document or multipage with PDF or the intercepting and capturing of GDI dot matrix image printed driver.
(2) utilize the monitor service program intercepting and capturing of print.er port to treat the document printing data, when the print.er port that detects selection has data stream (PS or PCL stream) through out-of-date, then intercept and capture, and the interpreter of operation respective page descriptive language, the document data of intercepting and capturing is interpreted as readable dot matrix image data.
(3) can also be the combination of dot matrix image print drive and PDF print drive in embodiments of the present invention.Be the dot matrix image data that first applying virtual dot matrix image print drive is obtained every page of content of document, after overcompression, store in the pdf document of a multipage then.Pdf document is convenient to check on the one hand, and the page or leaf of each in the pdf document all only comprises an image object on the other hand, parsing, the embedding of approval information and the checking of content integrity of pdf document in the convenient follow-up printing control flow.
Be not limited among the present invention and use print drive mode and print.er port monitor service program and intercept and capture and treat the document printing data also to can be the real-time monitor (RTM) that other can intercept and capture print data stream.
Wherein detect and treat whether document printing comprises through the method for examining: 1, detect in the database server whether preserve the described relevant approval information for the treatment of document printing, then this treats that document printing is through examining approval information.2, detect described treating and whether comprise hiding approval information in the document printing, if describedly treat to exist in the document printing approval information, then this treats that document printing is through examining.
Step 102 judges to treat whether the document printing form is the document format of presetting, if not, then the described document printing for the treatment of is converted to default document format, if then change step 103 over to.
In advance a certain specific document format is set at unique form of effectively examining, all document formats all must be the document formats of presetting when promptly examining, initiate approval process again after being converted to default document format if there is extended formatting in the document of intercepting and capturing, wherein, default document format can be Adobe PDF, Microsoft Office document, POSTSCRIPT and other any document format of using always that can support the software systems output of printing function.Selecting the pdf document form in the present embodiment is that effective document is examined form, and all that are about to intercept and capture all do not unify to be converted to readable pdf document form through that examine and document that be not PDF.
Step 103 is initiated the document approval process, and as shown in Figure 2, approval process is concrete comprises step:
S201, according to the intercepting relevant information (such as usersaccount information, file statistical information and file approval information, have the user terminal of the power of examination and approval information, have the user terminal title of the power of examination and approval etc.) finish landing of user account number and uploading of PDF document, thereby enter into the document approval process.
In addition also can with the conversion after treat document printing as annex, the document after directly will changing in the mode of mail is sent to the user terminal that has the power of examination and approval accordingly and examines.
S202, user terminal the examining with power of examination and approval treated document printing, and the mark approval information.
User terminal operation Acobat serial application system (such as Acobat reader) with power of examination and approval opens pdf document to be examined, check the back and in document, mark approval information, wherein, described approval information information comprises the umber of agreeing/disagreeing with printing, allow printing, secret rank (nothing, secret, top secret etc.), reference number of a document and the date etc. of printing page number scope, document.
S203 detects and treats that whether document printing is the document of agreeing printing, then goes to S204 if agree the document of printing, if not then go to S205.
S204 treats the approval information embedding in the document printing, and the backup file of approval information is stored in the database server.
Wherein, also approval information is embedded in the pdf document under not visible prerequisite, the specific implementation method can be:
(1) parse documents structure itself is utilized the document format characteristics, is increased in the document content as redundant information; (2), can adopt watermark information hidden algorithm in the bianry image (revising method) that the approval information back embedding of encoding is treated in the document printing as general image feature modification method and local characteristics of image if each page or leaf all be a dot matrix image in the pdf document.
Further, the backup file of approval information is stored in the specific database server, so that check during follow-up real printout.Simultaneously, add the content integrity authorization information in by every page of document content of the pdf document of examining, the document after preventing to examine is being distorted before real printout mala fide.
S205 treats that with described document printing is back to the initiation document and examines the requesting users terminal.
For the pdf document of disagreeing with printing, after the user terminal with power of examination and approval provides suggestion for revision or adds necessary markup information, be back to and mention the user terminal that document is examined, owing to there is not to add the suggestion information of passing through of examining in such pdf document, the backup file that does not also have relevant information on the database server, document must be through modification and perfect, again initiate to examine application, could continue the print procedure of back.
Step 104 is obtained approval information, is to agree typescripts if treat document printing, and then execution in step 105, otherwise execution in step 107.
The method of obtaining approval information comprises, obtains the approval information for the treatment of document printing or extract the approval information of hiding from database server from treat document printing.
Wherein, according to the hidden method of approval information, correspondingly, the extracting method of security information can be divided into two classes:
A, parsing pdf document, the place reads redundant information in certain location, and judges whether to parse other relevant information then by examining;
B, every page of content stream data is converted to the dot matrix image data, adopts the watermark information extraction algorithm in the bianry image, obtain all relevant informations.
Step 105, for the document of agree printing, examination treats whether document printing satisfies print conditions, if satisfy then go to step 106, does not then go to step 107 if do not satisfy, and judges to treat whether document printing satisfies print conditions and may further comprise the steps, as shown in Figure 3:
Step 301 is printed umber according to the accumulative total that writes down in the print log information, judges that whether the umber that allows to print has reached the upper limit, if not reaching the upper limit then goes to step 302, if arrived the upper limit, then stops printing.
Step 302, the content integrity information of checking the document is if then go to step 303 by checking, if document then stops the printing of the document through distorting not by checking.
Step 303, check the page number scope of printing, if the page number scope of current print parameters setting has exceeded the scope that allows in the approval information, must be with the approval information modification print parameters that is as the criterion, if the page number scope that print parameters is provided with is within allowed band, the page number scope printout document that is provided with print parameters then.
In addition in some cases, can in these important documents, imbed and be used for the secure ID information that follow the trail of in document source, such as user name of time-write interval, printer name and the computing machine of document or the like.When we obtained a be considered to the document of bootlegging and propagation after, can trace back to the source of document by extracting the identification information of wherein hiding, this has positive meaning for the safety control strategy in the document process of circulation.
Step 106, document printing is treated in printout, and after correct printout, record print log information in database server, and revise the printing umber that adds up.
Step 107 stops not by examining the printing of document.
The document by examination does not comprise following several situation: (1) is examined and is disagreed with printing; (2) still totally printing umber has exceeded the printing umber upper limit in the approval information to examine the agreement printing; (3) examine agreement and print, printing umber and page number scope also in rational limited field, are still intentionally distorted by client, thereby destroy the integrality of original document.Above-mentioned Doctype all is judged as not by checking process, if client wants is printed the document again, must initiate approval process again.
Based on same inventive concept, the present invention also provides a kind of terminal that document is printed of controlling, and as shown in Figure 4, comprising:
First module 401, be used for when the client executing printing, the document printing data are treated in intercepting, if the described document printing for the treatment of is not through examining, then detect and describedly treat whether the file layout of document printing is the document format of presetting, if will treat that then the document printing data are sent to monitoring module 403, if not, then the described document printing data for the treatment of are sent to modular converter 402.
Described first module 401 also is used for treating that when intercepting document printing when having examined, then is sent to monitoring module 403 with the described document printing for the treatment of.
Modular converter 402 is used for the described file layout of document printing for the treatment of is converted to default document format.
Monitoring module 403 links to each other with modular converter, is used to initiate approval process, and document printing is treated in printout according to approval information.
Logging modle 404 links to each other with the printout module, is used for writing down the described print log information for the treatment of document printing after document printing is treated in each correct printout.
As shown in Figure 5, described monitoring module 403 comprises: examine process unit 501 and print-out unit 502.
Examine process unit 501, be used for treating that with described document printing is sent to the user terminal with power of examination and approval and examines the mark approval information, and store described approval information.
Print-out unit 502 is according to the described document printing for the treatment of of approval information printout.
As shown in Figure 6, the described process unit of examining comprises that examining unit 601, approval information embeds unit 602, storage unit 603.
Examine unit 601, be used for treating that with described document printing is sent to the user terminal with power of examination and approval and examines, and the mark approval information.
Approval information embeds unit 602, is used for document printing is treated in described approval information embedding.
Storage unit 603 is used to store the backup file of approval information.
As shown in Figure 7, described print-out unit 502 also comprises: counting unit 701, authentication unit 702, page number control module 703.
Counting unit 701 is used for the printing umber that accumulative total is treated document printing, and whether detection printing umber has reached the upper limit.
Authentication unit 702 links to each other with counting unit 701, is used for according to the content integrity authorization information for the treatment of that document printing is hidden, and the integrality of document printing is treated in checking.
Page number control module 703, link to each other with authentication unit 702, whether the page number scope that is used for detecting current print parameters setting has exceeded the scope that approval information allows, if surpassed, then with the approval information modification print parameters that is as the criterion, if within allowed band, then be as the criterion with current print parameters.
The document unification that all need be examined is converted to a kind of file of specific format in embodiments of the present invention, such as pdf document, has increased file layout scope that can be controlled, and has simplified the flow process of examining.
And also added the document content checking process in embodiments of the present invention, overcome the not enough problem of control dynamics of printer in the prior art, reached the purpose of the printing of control client.Also added the document content integrated authentication simultaneously, so can cause document printout normally, the security of the document content that this strengthens to a certain extent for any illegally distorting of the document after examining.
For for the document approval process of B/S structure, this method can be supported the off-line printing operation, and once examines repeatedly printout.
In addition, the embodiment of the invention embeds the tracked information of document when the document printout, has overcome and can't learn the initial source of illegal document in the prior art, thereby can't investigate the problem of related personnel's responsibility.
Method of the present invention is not limited to the embodiment described in the embodiment, and those skilled in the art's technical scheme according to the present invention draws other embodiment, belongs to technological innovation scope of the present invention equally.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (18)

1, a kind of method of controlling the document printing is characterized in that, may further comprise the steps:
A. when the client executing printing, the document printing data are treated in intercepting, if the described document printing for the treatment of is not through examining, then detect and describedly treat whether the file layout of document printing is the document format of presetting, if then change step C over to, if not, then change step B over to;
B. the described document printing for the treatment of is converted to default document format;
C. initiate approval process, and according to the described document printing for the treatment of of relevant approval information printout.
2, the method for claim 1 is characterized in that, if the described document printing for the treatment of is through examining, then according to the relevant described document printing for the treatment of of approval information printout.
3, the method for claim 1 is characterized in that, described approval process specifically comprises:
With the conversion after treat that document printing is sent to the user terminal with power of examination and approval and examines, and the mark approval information;
Approval information is embedded described treating in the document printing.
4, method as claimed in claim 3 is characterized in that, approval information is embedded the described method of document printing for the treatment of comprise:
By the parse documents structure, utilize the document format characteristics, approval information is increased to described treating in the document printing, perhaps as redundant information
If treat that each page or leaf of document printing all is a dot matrix image, then adopt the watermark information hidden algorithm in the bianry image, after being encoded, approval information embeds described treating in the document printing.
5, method as claimed in claim 3 is characterized in that, with approval information embed described treat in the document printing after, further comprise:
The backup file of described approval information is stored in the database server.
6, method as claimed in claim 3 is characterized in that, approval information is embedded described treating after the document printing, and the content integrity authorization information is embedded described treating in the document printing.
7, the method for claim 1 is characterized in that, comprises according to the relevant described document printing for the treatment of of approval information printout among the described step C:
From database server, obtain the described relevant approval information for the treatment of document printing;
Treat document printing according to described approval information printout.
8, method as claimed in claim 7 is characterized in that, before treating document printing according to described approval information printout, further comprises:
Obtain the described integrity verification information for the treatment of document printing, verify the content integrity of described document, and if by verifying printout this treat document printing.
9, method as claimed in claim 7 is characterized in that, describedly treats that according to described approval information printout document printing comprises:
Judge whether the described accumulative total printing umber of document printing for the treatment of has reached the upper limit that allows to print umber;
If do not reach the upper limit, whether the page number of then judging current print parameters setting has exceeded the page number scope that allows in the approval information, reset print parameters if exceed the page number scope of permission then be as the criterion, if the page number scope that does not exceed permission is then treated document printing with the print parameters printout that is as the criterion with approval information.
10, method as claimed in claim 9 is characterized in that, printout is described treat document printing after, further comprise:
The described print log information for the treatment of document printing of record in described database server.
11, method as claimed in claim 9 is characterized in that, printout is described treat document printing after, further comprise:
In database server, revise the described accumulative total of document printing for the treatment of and print umber.
12, a kind of terminal of controlling the document printing is characterized in that, comprising:
First module, be used for when the client executing printing, document printing is treated in intercepting, if the described document printing for the treatment of is not through examining, then detect and describedly treat whether the file layout of document printing is the document format of presetting, if will treat that then document printing is sent to the printout module, if not, then the described document printing for the treatment of is sent to modular converter;
Modular converter is used for the described file layout of document printing for the treatment of is converted to default document format;
Monitoring module links to each other with modular converter, is used to initiate approval process, and document printing is treated in printout according to approval information.
13, terminal as claimed in claim 12 is characterized in that, described first module also is used for treating that when intercepting document printing when having examined, then is sent to the printout module with the described document printing for the treatment of.
14, terminal as claimed in claim 12 is characterized in that, described monitoring module comprises:
Examine process unit, be used for treating that with described document printing is sent to the user terminal with power of examination and approval and examines and mark approval information, store described approval information;
Print-out unit is according to the described document printing for the treatment of of approval information printout.
15, terminal as claimed in claim 14 is characterized in that, the described process unit of examining comprises:
Examine the unit, be used for treating that with described document printing is sent to the user terminal with power of examination and approval and examines, and the mark approval information;
Approval information embeds the unit, is used for document printing is treated in described approval information embedding.
16, terminal as claimed in claim 15 is characterized in that, the described process unit of examining also comprises:
Storage unit is used to store the backup file of approval information.
17, terminal as claimed in claim 14 is characterized in that, described print-out unit also comprises:
Counting unit is used for the printing umber that accumulative total is treated document printing, and whether detection printing umber has reached the upper limit;
Authentication unit links to each other with counting unit, is used for according to the content integrity authorization information for the treatment of that document printing is hidden, and the integrality of document printing is treated in checking;
Page number control module, link to each other with authentication unit, whether the page number scope that is used for detecting current print parameters setting has exceeded the scope that approval information allows, if surpassed, then with the approval information modification print parameters that is as the criterion, if within allowed band, then be as the criterion with current print parameters.
18, terminal as claimed in claim 12 is characterized in that, further comprises:
Logging modle links to each other with the printout module, is used for writing down the described print log information for the treatment of document printing after document printing is treated in each printout.
CNA2008102225108A 2008-09-18 2008-09-18 Method and terminal for controlling document print Pending CN101377731A (en)

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CN102541482B (en) * 2010-12-27 2015-01-21 北大方正集团有限公司 Method and system for document printing control and document tracing
CN102404024A (en) * 2011-07-05 2012-04-04 上海市安全生产科学研究所 Bluetooth transferring and printing method of law enforcement documents
CN102881034A (en) * 2012-05-14 2013-01-16 珠海金山办公软件有限公司 System and method for inserting watermarks into application document
CN102881034B (en) * 2012-05-14 2016-08-03 珠海金山办公软件有限公司 A kind of system and method inserting watermark in profile
CN103700014A (en) * 2012-09-27 2014-04-02 理光打印系统技术(上海)有限公司 Credit center contract making equipment and credit contract making system containing same
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CN106605220A (en) * 2014-07-02 2017-04-26 道库门特公司Ip信托单位 Method and system for selective document redaction
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CN110147207B (en) * 2018-02-11 2020-12-29 北大方正集团有限公司 Printing distribution method, printing distribution system, computer equipment and storage medium
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CN111198664B (en) * 2018-11-16 2024-01-26 珠海金山办公软件有限公司 Document printing method and device, computer storage medium and terminal

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