Watermark PDF

Yes. The only watermark on your file is the one you type — we never stamp our own name on the output, and there is no account or trial to start. The tool runs in your browser tab, so it costs us nothing to keep free.

No. Your document and your watermark text both stay on your device — the stamped PDF is built in the browser and saved locally. This page fetches its own code and reports an anonymous usage count, and neither one carries your file or the words you typed.

Those three, yes. An opacity slider takes it from a faint ghost to solid text, you pick the text size, and a toggle runs the stamp diagonally across the page or straight across horizontally. The text is always centered, and the same settings apply to every page.

That is the default. The stamp is applied to every page of the document in a single pass, however long the file is, and the placement stays consistent from the first page to the last. There is nothing to repeat page by page.

Encrypted PDFs cannot be opened without the password, so there is no page for the watermark to land on. Save an unprotected copy from your PDF reader first, then stamp that one. The tool tells you what happened rather than producing an empty file.