Add Watermark to PDF Free — PDF Watermark
Stamp a text or image watermark on every page of your PDF — with opacity, rotation, size and position controls. Free, no sign-up, files never leave your device.
✦ Free forever • No sign-up • No upload • No watermark
PDF Watermark — Free, No Sign-Up
Choose one PDF file, type your watermark text, pick the opacity, rotation and position, and press Add Watermark.
How to use PDF Watermark
Choose your PDF
Click the box above or drop one PDF file onto it.
Set your watermark
Type the watermark text (for example “CONFIDENTIAL” or “DRAFT”), or pick an image. Choose the opacity, rotation, size and position — centre, a corner, or tiled across the page.
Download the watermarked PDF
Press “Add Watermark”. Every page you chose gets the watermark stamped on it, and the file downloads instantly.
Example: Example: stamp “DRAFT” diagonally at 45° with 30% opacity on all 10 pages of a report — readable, but the text underneath stays easy to read.
About PDF Watermark
A watermark marks a document as yours: “CONFIDENTIAL” on a contract, “DRAFT” on a report, or your name or logo on a price list. PDFTools stamps your watermark onto your PDF right in your browser — text or an image, on every page or only the pages you pick, at the opacity, rotation, size and position you choose. The watermark is drawn into the file itself, so it stays wherever the PDF goes.
You control everything: light and faint for a background mark, or bold and dark for a stamp that cannot be missed. There is no upload, so your document never leaves your device, and there is no watermark on the tool itself — the only watermark is the one you choose. Everything is free, with no account and no sign-up, and it works on phones, tablets and computers.
Frequently asked questions
How do I add a watermark to a PDF?
Choose your PDF, type your watermark text (or pick an image), set the opacity, rotation, size and position, then press “Add Watermark”. The watermarked PDF downloads immediately.
Can I use an image as the watermark?
Yes. Choose “Image” and pick a PNG or JPG — your logo, for example. Set the opacity and size, and it is stamped on every page you chose.
Can I watermark only some pages?
Yes. Choose “Pages from–to” and enter the first and last page. Only those pages get the watermark.
Will the watermark cover my text?
That depends on the opacity you pick. At 30% opacity the watermark sits behind your reading — visible, but the text underneath stays easy to read. At 100% it is solid and will cover what is under it.
Is adding a watermark free?
Yes. Adding a watermark on PDFTools is 100% free. There is no paid plan, no page limit and no watermark you did not ask for.
Do my PDF files get uploaded?
No. The watermarking happens entirely in your browser. Your files never leave your device and nothing is stored on any server.
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