1, download the fast pdf editor on your own computer, open the browser search software official website, and download the software after the search is completed.

2. Then you can run the quick pdf editor, open it and click File-Open, so you can add pdf files.

3. Then click Tools-Marking and Marking-Stamp Tool on the left side of the interface to select a stamp.

4. After selection, you can move the stamp to the page to add the stamp. When adding a stamp, you can also click Stamp Panel, click Folder icon in the pop-up Stamp Panel window, click Folder icon in the pop-up Add Stamp dialog box, add the stamp file to be added according to the path, and then click Open. Select Target Collection in the Add Stamp dialog box, and then click OK.

5. Then you can save the pdf file, just click the "File"-"Save" button on the interface.