PDF Watermark Tool Online
Add a text watermark to every page of a PDF.
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Drop a PDF here or click to select
Add a custom text watermark with position, angle, and colour control
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Custom
About PDF Watermark
Add a custom text watermark (like "CONFIDENTIAL", "DRAFT", or your name) diagonally across every page of a PDF. Control the text, font size, and opacity.
Use Cases
Marking draft documents, adding "CONFIDENTIAL" to sensitive files, branding PDFs with your company name, creating review copies.
How It Works
Uses pdf-lib to draw rotated, semi-transparent text at the centre of each page and saves the watermarked PDF for download.
FAQs
Can I change the watermark position?
Currently the watermark is centred and diagonal on each page.
Can I remove the watermark later?
No — the watermark is baked into the PDF. Keep a copy of the original before watermarking.