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Add a watermark to a PDF in your browser

Drop in a PDF, type a text watermark (DRAFT, CONFIDENTIAL, your firm name) or upload a PNG logo, then set the opacity, position, and angle. The mark is stamped on every page and you download the result. Everything happens in your browser, your file is never uploaded, so it is safe for confidential contracts and drawings. No signup, no email, no extra watermark of ours.

Drop your PDF here
or click to browse
Your file never leaves your browser. Watermarking runs entirely on your device.

Frequently Asked Questions

How do I watermark every page of a PDF for free?
Drop the PDF in above, type your watermark text (or upload a PNG logo), set the opacity, position, and rotation, then download. The mark is applied to every page and nothing is uploaded to a server.
Does my file get uploaded anywhere?
No. Your PDF is opened, stamped, and saved entirely in your browser on your own device. It is never sent to a server, never stored, and never seen by us. Safe for confidential contracts, tenders, and NDA work.
Can I use my own logo as the watermark?
Yes. Switch to the logo option and upload a PNG (a transparent PNG works best). You can set its opacity, place it in any corner or the center, and rotate it. The logo is read in your browser and never uploaded.
Will the watermark be permanent in the file?
The watermark is drawn directly onto each page as part of the page content, so it stays when the PDF is viewed or printed. It sits on top of the existing artwork rather than being a separate editable layer.