TWI501094B - Watermark generating method, computer program product, and electronic device - Google Patents

Description

Method for generating watermark file, computer program product and electronic device

The present invention relates to a method of generating a watermark file, a computer program product, and an electronic device.

With the increase of enterprise information processing and processing capabilities, when a confidential file is transmitted internally, most of the control parameters corresponding to the confidential file are transmitted together to protect the confidential file. Such control parameters will change the confidentiality of the confidential documents and so on, so different confidential documents will have different control parameters.

It is a very common technique to combine watermarks with files. Usually, the content displayed by the watermark is the watermark of the "fixed style" defined by the file creator, and the content displayed by the watermark is not changed according to the control parameters. The IP (internet protocol) address of the device reader's device, the file reader's account number or name, and the file reading date and time cannot be displayed.

In summary, it is necessary to provide a method for generating a watermark file that changes the content of the watermark display according to the control parameter, to remind the file reader of the confidential information of the file, to increase the variability of the content displayed by the watermark, and Solve the lack of prior art.

It is an object of the present invention to provide a method of generating a watermark file.

Another object of the present invention is to provide a computer program product for generating a watermark file.

It is still another object of the present invention to provide an electronic device for generating a watermark file.

In order to achieve the above object, the method for generating a watermark file of the present invention comprises the steps of: receiving a "file" and a "control parameter"; generating "watermark information" according to the "control parameter"; combining "watermark information" with "File" to create "have a watermark file"; and, open "have a watermark file". During the opening of the "with watermark file", a plurality of "operation instructions for copying the temporary storage area" are continuously generated to delete a "copying the contents of the temporary storage area".

The present invention further provides a computer program product for generating a watermark file. After the computer loads the computer program product and executes it, the steps of the method for generating a watermark file of the present invention can be completed.

The invention also provides an electronic device for generating a watermark file, which comprises a receiving module, a processor and a memory, wherein the processor is electrically connected to the receiving module and the memory respectively, and the memory stores the plurality of instructions, the processor Reading the complex instruction to perform the following mechanism: the watermark generation module generates the "watermark information" according to the "control parameter"; the watermark combination module combines the "watermark information" and the "file" to generate "Watermark file"; by "reading the file module" to open "with watermark file", and continue to generate a plurality of delete "copy temporary storage area operation instructions" to delete the "copy temporary storage area".

100‧‧ ‧ documents

110‧‧‧Watermark file

200‧‧‧Control parameters

210‧‧‧Watermark Information

10‧‧‧Using the terminal computer

11‧‧‧Watermark generation module

12‧‧‧Watermark binding module

13‧‧‧Reading file module

14‧‧‧ receiving module

15‧‧‧ processor

16‧‧‧ memory

80‧‧‧File Service Server

90‧‧‧Network

1 is a usage environment diagram of a method for generating a watermark file according to the present invention.

2 is a flow chart showing the steps of the method for generating a watermark file of the present invention.

Figure 3 is a schematic illustration of one embodiment of a watermark file.

The above and other objects, features and advantages of the present invention will become more <

Please refer to FIG. 1 to FIG. 3 for an embodiment of the method for generating a watermark file according to the present invention. FIG. 1 is a use environment diagram of a method for generating a watermark file according to the present invention; FIG. 2 is a generation of the present invention. A flow chart of the steps of the method of floating watermark file; FIG. 3 is a schematic diagram of an embodiment having a watermark file.

As shown in FIG. 1, the method for generating a watermark file of the present invention is used for a user computer 10, and the terminal computer 10 receives the "file 100" and the "file 100" transmitted from the file service server 80 via the network 90. Related "Control Parameter 200". According to an embodiment of the present invention, the end computer 10 can be an electronic device such as a personal computer, a notebook computer, a mobile device (such as a mobile phone or a tablet computer), or a PDA (personal digital assistant), and the network 90 can be an internet device. Internet, intranet or wireless communication network.

As shown in Figure 1, the end computer 10 includes floating water a print generation module 11, a watermark combination module 12, a reading file module 13, a receiving module 14, a processor 15, and a memory 16, wherein the foregoing modules can be presented in the form of software, hardware or firmware, and The memory 16 stores a plurality of instructions, and the processor 15 executes the complex instructions to perform the steps of the method of generating a watermarked file of the present invention. As shown in FIG. 2, the method for generating a watermark file of the present invention comprises the following steps:

Step S1: Receive "file" and "control parameters".

As shown in FIG. 1, the terminal computer 10 receives the "file 100" and the "control parameter 200" transmitted by the file service server 80 via the receiving module 14. It should be noted that the "file 100" may be in any format, for example: "file 100" may be a Word format, a JPEG format, or a PDF format. The "control parameter 200" is used to indicate what kind of content and form "watermarking information 210" is generated by the watermark generating module 11 of the end computer 10, and the "control parameter 200" may include the expiration date of the "file 100". , date and time of creation, time of downloading files, confidentiality level, user information of open files, information of readers, IP (internet protocol) address of file readers, file reader account number or name, or The display font, font size, font color, and/or display position relative to "File 100" of the watermark information 210.

Step S2: Generate "watermark information" according to "control parameters".

The use of the computer 10 by the watermark generation module 11 generates a corresponding "watermark information 210" according to the received "control parameter 200", that is, the end computer 10 generates a "watermark" according to the guidance or command of the "control parameter 200". Information 210』.

Step S3: "File" and "Watermark Information" Combined as "having a watermark file".

The end computer 10 combines the "watermark information 210" and the "file 100" by the watermark combining module 12 to generate the "having the watermark file 110".

Step S4: Open "With watermark file".

As long as the end computer 10 confirms that the user who is ready to open the "having the watermark file 110" has the right to read the "having the watermark file 110", the user can open the "having the watermark file 110" through the reading file module 13. It should be noted that the reading file module 13 is an application that can open the "file 100" in the terminal computer 10. For example, if the "file 100" is in the DOC format, the reading file module 13 is a Microsoft Word editing program.

Further, as shown in FIG. 3, after the "having the watermark file 110" is turned on, the user can simultaneously view the contents of the "file 100" and the "watermark information 210". In the present embodiment, the "watermark information 210" includes the name information of the user who reads the "file 100", the confidentiality level of the "file 100", and the user opens the "having the watermark file 110" on the computer 10 at the use end. Date and time. It is worth noting that the display format of "Watermark Information 210" is not limited. The font type, font size, font color and/or display position of "Watermark Information 210" are not shown in Figure 3. The embodiment shown is limited.

Step S5: continuously generate a plurality of deletions of the "operational instructions for copying the temporary storage area" to delete the "copying the contents of the temporary storage area".

During the period in which the reading file module 13 opens the "having the watermark file 110", the processor 15 of the end computer 10 continues to generate a plurality of "operation instructions for copying the temporary storage area" to delete the contents stored in the "copy temporary storage area". 』, thereby preventing "having a watermark The contents of file 110 are copied. According to an embodiment of the present invention, the processor 15 of the end computer 10 generates an operation instruction for deleting the "copy temporary storage area" every millisecond to delete the copy of the "having the watermark file 110" instruction, thereby avoiding " The content with the watermark file 110 is copied to achieve the purpose of information security control.

For example, suppose that the user copies the content "with the watermark file 110" by using the screen shot (ScreenShot) while reading "having the watermark file 110", but because the processor 15 of the end computer 10 generates a delete every millisecond. Copying the operation instruction of the temporary storage area, the screenshot (ScreenShot) copying instruction stored in the "copy temporary storage area" is deleted by the processor 15, thereby preventing the content having the watermarked file 110 from being copied and pasted. In the case of another file, the content of "having a watermark file 110" is leaked.

It should be noted that the time interval between the processor 15 for deleting the "operational instruction for copying the temporary storage area" is not limited to the foregoing embodiment, and the processor 15 can also be at least every five seconds (for example, every 5 seconds). 1 second, or 5 milliseconds, etc.) generates a delete operation instruction for copying the scratchpad area.

Step S6: deleting the watermarked file under a set condition.

According to an embodiment of the present invention, after the user closes the watermark file 110, the processor 15 deletes the "having the watermark file 110" stored in the user computer 10 to prevent the file from being leaked.

It should be noted here that the method for generating a watermark file of the present invention is not limited to the above-described sequence of steps, and the order of the above steps may be added as long as the object of the present invention can be achieved. To change.

In summary, the present invention is a breakthrough in terms of its purpose, means and efficacy, and it is different from the characteristics of the prior art. It is a great breakthrough for the reviewer to ask for an early patent, and to benefit the society. Debian. It is to be noted that the above-described embodiments are merely illustrative of the principles of the invention and its advantages, and are not intended to limit the scope of the invention. Modifications and variations of the embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. The scope of protection of the present invention should be as described in the scope of the patent application to be described later.

Step S1 to step S6

Claims (11)

A method for generating a watermark file includes the steps of: receiving a file and a control parameter; generating a watermark information according to the control parameter; combining the watermark information with the file to generate a watermark file; a watermark file; and continuously generating a plurality of operation instructions for deleting the copy temporary storage area to delete the contents of a copy temporary storage area. The method for generating a watermark file according to claim 1, wherein an operation instruction for deleting the copy temporary storage area is generated at least every five seconds. The method for generating a watermark file as described in claim 2, further comprising the step of deleting the watermarked file under a set condition. The method for generating a watermark file as described in claim 3, wherein the setting condition is to close the watermarked file. The method for generating a watermark file according to claim 1, wherein the control parameter comprises at least one of the following parameters: an expiration date of the file, a date and time of generation, a time to download the file, a secret level, and a file opening. User information, information about the person reading the document, the IP (internet protocol) address of the device used by the reader, the file reader account number or the name. A computer program product for generating a watermark file. When the computer is loaded into the computer program and executed, the method of any one of claims 1 to 5 can be completed. An electronic device for generating a watermark file includes: a receiving module for receiving a file and a control parameter; and a processor electrically connected to the receiving module; a memory electrically coupled to the processor, the memory storing a plurality of instructions, the processor readable the plurality of instructions to perform the following mechanism: generating a float according to the control parameter by a watermark generation module Watermark information; combining the watermark information with the file by a watermarking combination module to generate a watermarked file; opening the watermarked file by a reading file module; and continuously generating a plurality of deleted copy temporary files The operation instruction of the area deletes the contents of a copy temporary storage area. The electronic device for generating a watermark file according to claim 7, wherein the processor generates an operation instruction for deleting the copy temporary storage area at least every five seconds. An electronic device for generating a watermark file as described in claim 8 wherein the processor deletes the watermarked file under a set condition. The electronic device for generating a watermark file according to claim 9, wherein the setting condition is to close the watermarked file. The electronic device for generating a watermark file according to any one of claims 7 to 10, wherein the control parameter comprises at least one of the following parameters: expiration date of the file, date and time of generation, time of downloading the file, confidentiality The level, the user information of the file to be opened, the information of the reader, the IP (internet protocol) address of the device used by the reader, the file reader account number or the name.