PDF Watermark Adder
Add a diagonal text watermark, such as "CONFIDENTIAL" or "DRAFT", across every page of a PDF, directly in your browser.
About this pdf watermark adder
Before a contract is finalized, or when sharing a proof copy, a clear watermark helps avoid confusion about which version is which. This tool stamps your chosen text across every page of a PDF.
How pdf watermark adder works
Your chosen text is drawn across each page at an angle and an opacity you control, then the watermarked pages are saved as a new PDF.
Common uses
- Marking draft contracts before they are finalized
- Protecting shared proof copies from being mistaken for a final version
- Labeling internal documents before wider distribution
How to use this tool
- Choose your PDF file.
- Enter your watermark text and set the opacity.
- Click Add Watermark.
- Download the watermarked PDF.
What to know before using it
Works on text watermarks only. For a logo or image watermark, you would need a different tool, this one focuses on clear, readable text stamps.
Privacy and browser-first processing
Your PDF is watermarked entirely inside your browser tab and is never uploaded to this server.
Frequently asked questions
Can I control how visible the watermark is?
Yes, the opacity setting lets you make it subtle or bold, depending on how prominent you want it to be.
Does the watermark appear on every page?
Yes, it is applied across every page of the document.