In many countries and regions, electronic seals are regarded as a legally binding method of signing. In documents that require legal protection, affixing an electronic seal can enhance the authority of the document. This article will teach you how to affix an electronic official seal to PDF files, supporting one-click batch addition of electronic official seals to every page of a file, as well as batch adding electronic official seals to tens of thousands of PDF files at once.
The Role and Significance of Adding Electronic Seals to PDF Files
1. Ensure the source and authenticity of the file. Electronic seals can prove the source of the file and the identity of the signing party. After adding an electronic seal to a PDF file, the recipient can confirm that the file was indeed issued by a legally authorized person or organization.
2. Enhance legal effect. Currently, many countries regard electronic seals as a legally binding signing method. Some very important files requiring legal protection, such as electronic contracts and agreements, can have their authority enhanced after adding an electronic seal.
3. Improve work efficiency. Compared with traditional paper sealing, electronic seals can be quickly and batch-added to PDF files, enabling more efficient file signing. In scenarios such as remote signing and cross-regional file transmission, electronic seals play an important role, avoiding delays caused by mailing files.
Preview of the Effect After Adding an Electronic Company Seal to a PDF File
Before processing:

After processing:

Steps for Batch Adding Electronic Company Seals to Multiple PDFs
1. Open HeSoft Doc Batch Tool , choose PDF Tool → PDF Add Stamp.

2. Add all PDF files that need an electronic company seal. There are three ways to add files: Add File, Import Files from Folder, or simply drag and drop files in.

3. Choose the processing scope: You can add the electronic company seal to every page of the PDF file, or only to selected pages.
Stamp Type: Standard. You can also add a cross-page seal to the file; this example uses a standard seal.
Select File: Add the prepared electronic company seal, then customize and adjust the position and effect of the electronic seal.

4. After processing is complete, click the save location to view.

All the PDF files we added have been stamped with the electronic company seal on every page. Using this method to batch-stamp files with electronic seals means there's no need to worry even with tens of thousands of files—just do it with one click!