Add a PDF Watermark for Free
Mark a document as DRAFT, CONFIDENTIAL, or FOR REVIEW with a free text watermark. PDFSwan places your label diagonally across the center of every page.
Arrange your pages
Use the arrows to move pages, rotate them, or remove what you don’t need.
All sorted.
Download PDF ↓How to use this free Watermark PDF tool
- Choose an unlocked PDF.
- Enter your watermark text and select its opacity.
- Create the PDF and inspect the watermark on each page.
What to know before you start
Your original file stays unchanged. Choose an unlocked PDF. Keep total input under 50 MB and output under 300 pages. Image-rendering tools have an 80-page limit and additional memory limits.
Check the downloaded result before sharing it. PDF changes can affect forms, annotations, links, bookmarks, or existing digital signatures.
Frequently asked questions
Is Watermark PDF free to use?
Yes. This PDFSwan tool is free, with no payment or signup required. File and page limits apply. Create a free account only if you want to save custom workflows.
Does a watermark remove sensitive information?
No. A watermark adds visible text over the page. It does not remove underlying content and must not be used as redaction.