Adding an electronic seal to a PDF file is a common operation, and many tools and platforms can achieve this. Examples include HeSoft Doc Batch Tool , Adobe Acrobat Pro DC, PDF24 Tools, etc. Below, we will comprehensively compare and analyze these tools from aspects such as functionality, security, and practicality, so that you can choose the most suitable tool based on your own needs to add an electronic seal to a PDF.
Preview of the Effect After Adding an Electronic Seal to a PDF File
Before processing:
After processing:
1. HeSoft Doc Batch Tool
This is an efficient office software specifically designed for batch processing files, featuring a clean interface, simple operation, and comprehensive functionality. It supports adding electronic official seals to tens of thousands of PDF files simultaneously. All files are processed locally, eliminating the need for uploads and downloads, ensuring a fast, secure, and reliable workflow.
Steps:
(1) Open HeSoft Doc Batch Tool , select PDF Tools → Add Stamp to PDF.
(2) Add all PDF files that need an electronic seal, using the Add Files button in the upper right corner.
(3) Click "Select File" to import the prepared electronic seal image. Choose the page range and stamp type according to your needs, and adjust the stamp's position and effect as desired.
(4) Once processing is complete, open the save location to directly view the processed PDF files.
2. Adobe Acrobat Pro DC
A professional PDF editing tool that supports adding electronic signatures, digital signatures, and electronic seals to PDF files. It offers comprehensive functionality suitable for various signing scenarios. However, the software operation can be complex and cumbersome, with a less intuitive interface.
Steps:
(1) Open the PDF file with Adobe Acrobat Pro DC, select "Edit PDF" → "Watermark" → "Add".
(2) Select "File" to import the prepared electronic seal, then adjust the seal's angle, transparency, and position as needed. Set the pages to which the electronic seal will be added in the upper right corner.
(3) Once configured, click "OK". If you have many PDF files that need the electronic seal, click "Apply to Multiple Files" and select the corresponding files.
3. PDF24 Tools
This is a free online and desktop PDF tool suite offering a variety of PDF editing and processing features, with simple operation that is easy to learn. However, the online version lacks security and can easily lead to information leaks; it relies on the network, making the upload and processing of files slower, and has certain limitations on PDF file size.
Steps:
(1) Open the PDF24 Tools page, enter it, and select "Edit PDF"; upload the PDF file that needs the electronic seal.
(2) After entering the editing mode, select "Image" at the top, then add the prepared electronic seal to the page, and adjust its size and position as desired.
(3) Once set, save the PDF file and download it locally.
The above are 3 practical tools for adding electronic seals to PDF files. The article also details the features of these tools and their specific operation steps. If you need to do this, give it a try now!