Add a Watermark to a PDF: Free, Diagonal Text on Every Page

Here's how to add a watermark to a PDF for free: drop it in, type the text, and it's baked diagonally across every page. Nothing is re-compressed: the existing text and images are untouched.

What the demo shows

The demo adds a text watermark to a PDF for free. You drop the file onto the page and type the text you want. That text is then baked diagonally across every page of the document. Nothing is re-compressed, so the existing text and images in the PDF are untouched and only the watermark is added. You download the marked file at the end. A watermark like this is used to mark a document as a draft or a copy, or to put a name on something you share, and because it sits on every page it is easy to see which file a page came from. No account is needed. The clip is about twenty seconds long and covers the full job from the upload to the finished document, with no signup in between.

Transcript

Add a watermark to a PDF, completely free. Type the text, and it's baked diagonally across every page. It's free: the link's in the description. Five euro unlocks every tool.

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