🔒 Processed locally — files never leave your browser
Add Watermark to PDF
Stamp a custom text watermark diagonally across every page of a PDF.
Click to select a PDF or drag and drop it here
Ad placement (insert AdSense ad unit code here)
How it works
Upload your PDF, enter the watermark text you want (like "CONFIDENTIAL" or "DRAFT"), adjust the opacity and font size, and click "Add Watermark". The text is stamped diagonally across the center of every page in a new downloadable PDF.