A watermark is a quick way to mark a document as a draft, confidential, or attributed to a specific copy before sharing it further.
This tool stamps your chosen text diagonally across every page in a light, semi-transparent style that doesn't obscure the content underneath.
The watermark is applied entirely in your browser, so drafts and sensitive documents never leave your device just to get labeled.
How to use the Add Watermark to PDF
- Select a PDF file.
- Enter the watermark text.
- Download the watermarked PDF.
What this watermark won't do
This adds a visible text stamp, not a hidden or tamper-proof security feature - someone with PDF editing tools could still remove it, so treat it as a labeling convenience rather than document protection.
Common uses
- Marking drafts before circulating for feedback
- Stamping CONFIDENTIAL on internal documents
- Labeling a copy with a recipient's name before sending
Frequently asked questions
Is it free?
Yes, free with no signup.
Can I change the watermark text?
Yes, type any text you want stamped across the pages.
Are my files uploaded?
No. Everything runs locally in your browser.
Does it work on scanned PDFs?
Yes - it stamps on top of the existing page content, whether that's text or a scanned image.