Watermark PDF
Stamp text across every page of a PDF, with control over opacity, angle and size. It runs in your browser, so your file never leaves your device.
Also searched as: add watermark to pdf · pdf watermark · stamp pdf · confidential watermark pdf
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How to use it
- 1
Add your PDF
Choose or drop a PDF file.
- 2
Set the watermark
Type the text and adjust the opacity, angle and size.
- 3
Download
Press Add watermark and save the stamped file.
Questions about watermark pdf
Can I use an image watermark?
Not yet — this tool stamps text. Image watermarks are planned for later.
Will it cover the content?
Lower the opacity so the watermark shows through without hiding the text underneath.
Is my file uploaded?
No. The watermark is added in your browser.
Choosing the text and the look
Short, clear words work best: DRAFT, CONFIDENTIAL, COPY or a name. Set the angle so it runs diagonally across the page, and keep the opacity low so the watermark shows through without hiding the text underneath. Increase the size until it spans the page without crowding the content, and look at the first page of the result before you share it.
What a watermark can and cannot do
A text watermark discourages casual reuse and makes it clear what status a document has. It does not stop a determined person from removing it, so it is not a replacement for a password. If the document is private, protect it with a password as well. This tool stamps text only, not images.