Method and system for signing perforation seal to electronic document and storage medium

Abstract

The invention relates to a method and system for signing a perforation seal to an electronic document, and a storage medium. The method comprises the following steps: obtaining the size of an electronic seal picture and the number of pages of the electronic document to be signed; according to the page number of the to-be-signed electronic document and the size of the electronic signature picture, determining a signing area used for signing the electronic signature picture in each page of the to-be-signed electronic document and a to-be-displayed area of the electronic signature picture corresponding to each page; determining a signing position of the electronic signature picture at each page according to the signing area and the area to be displayed; adding data of an electronic signature picture into a file of an electronic document to be signed, and obtaining a unique mapping value of the electronic signature picture in the file; displaying the electronic signature picture at a signature location at each page by referencing the unique mapping value. According to the technical scheme, the pixel loss caused by picture cutting is avoided, and meanwhile, the consumption of a CPU (Central Processing Unit) is reduced.

Description

Technical field [0001] The present invention relates generally to the field of information security. More particularly, the present invention relates to a method for the perforation seal signed electronic document, the system and a storage medium. Background technique [0002] Existing electronic document signing to implementation Jifeng are: the electronic signature picture proportional segmentation, such as: electronic document has to be signed N pages, electronic signature picture will cut into N parallel sub-tile sheets, then each sub block after segmentation is added to a corresponding position of the corresponding page of the electronic document to be signed, and a digital signature. like figure 1 Shown, there is a signed electronic document 3, on the first page, second page and third page are respectively added to the first sub-block 1, a second sub-block 2 and the third sub-block 3. like figure 2 Shown, a first page, second page and third page are sequentially arranged in...

AI Technical Summary

Problems solved by technology

[0003] The above method has the following problems: 1. In the process of segmenting the electronic signature image, because the result obtained by dividing the pixel value of the image width or height by the number of pages is likely to be not an integer, the sub-images after segmentation Usually, the decimal part is discarded and only the integer part is kept, which results in the loss of picture pixels; 2. N sub-blocks will be generated after the electronic signature image is divided in parallel, and the process of generating sub-blocks will consume more CPU resources; 3. If you need to digitally sign a signed electronic document, you need to digitally sign each signed page separately. This method will make the digitally signed electronic document take up more space. Therefore, it will take up more storage resources and network bandwidth resources

Images