PDF Watermark Adder
Stamp text watermarks across every page of a PDF.
About the PDF Watermark Adder
Add a CONFIDENTIAL, DRAFT or custom text watermark to every page of a PDF with control over placement (centered, tiled, footer or corner), font size, rotation, colour and opacity. The watermark is drawn as real vector text so it stays crisp at any zoom and prints cleanly.
Examples
Confidential stamp
contract.pdf + "CONFIDENTIAL" centered at 20% opacityOutput
contract-watermarked.pdfTiled draft mark
spec.pdf + "DRAFT" tiled at 45°Output
spec-watermarked.pdf with repeating marksKeyboard shortcuts
- Copy the main outputCtrl / ⌘ + Shift + C
- Download the resultCtrl / ⌘ + S
- Share this toolCtrl / ⌘ + Shift + S
- Reset the inputsAlt + R
- Open the tool search paletteCtrl / ⌘ + K
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Frequently asked questions
Read more
- Electronic signatures without uploading your documents
What a signature image really is, why transparency matters, and how to produce one that drops cleanly into a contract or PDF.
Version 1.0.0 · Updated 2026-08-13 · Runs entirely in your browser