Add Watermark to PDF Online — Free and Private
Add watermark to PDF with text or an image — diagonal, tiled or centred — to mark drafts and confidential copies. Add your one PDF and get a PDF with your text or image watermark — no upload, no signup, no watermark.
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What you can do with Add Watermark
Text or image watermarks
Opacity, rotation, size and tiling controls
Applies to every page or just a range
How to add watermark to pdf in 3 steps
Add the PDF
Load the document to stamp.
Design the watermark
Type the text or upload a logo, then set opacity and angle.
Download the stamped PDF
The watermark is baked into every page.
Most edits to a PDF are last-minute: a missing signature, a highlight for a colleague, a page number on a contract. Add Watermark handles those on the spot without a desktop install, an account or a subscription. Annotated output is flattened into the page, so the recipient sees exactly what you saw regardless of the reader they use.
No upload
Your one PDF are read locally with JavaScript and WebAssembly — for this tool, nothing is sent to a server.
No signup
No account, no email, no credit card, no trial to remember.
No watermark
What you download is the real file — clean, unmarked and print-ready.
Add Watermark FAQ
What do I get back after using Add Watermark?
You get a PDF with your text or image watermark.
Do I need an account to use it?
No account, no email and no credit card. Open the page, add your file and download the result.
Is this safe for confidential documents?
Yes. The work happens locally, so no copy of your document is stored anywhere. There is no upload step to leak and no server-side queue to wait in.
Does it work on a phone, and can I use it offline?
Yes. The page works in any modern browser on desktop, tablet or phone, and once it has loaded it keeps working with no connection.
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