💧 Watermark PDF
Add watermark to PDF — free, fast, and private.
Drop PDF file(s) here
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How to Watermark PDF
Upload your file(s) by dragging and dropping or clicking the upload area above.
Click the button to process your files instantly in your browser.
Your processed file will download automatically. No signup needed!
Performance & Details
Adds semi-transparent diagonal text across every page. Customizable text (CONFIDENTIAL, DRAFT, your company name). Font rendered via fontkit — supports Latin characters.
All processing uses pdf-lib (open-source). Files stay in your browser — zero server uploads. Last verified: May 2026.
Watermark PDF — Available Nationwide
Watermark PDF — Available Across Europe
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Go Pro — $5/monthWatermark PDF — Frequently Asked Questions
Can I customize the watermark text?▼
Yes — type any text you want. Common choices are CONFIDENTIAL, DRAFT, COPY, or your business name.
Will the watermark cover the document content?▼
The watermark is semi-transparent and positioned diagonally, so underlying text remains readable.
Can I add an image watermark instead of text?▼
Currently text watermarks are supported. Image watermark support is on our roadmap.
Can the watermark be removed?▼
The watermark is embedded in the PDF and cannot be easily removed without specialized software.
Does watermarking work on scanned PDFs?▼
Yes — the watermark is added as a text layer over every page, including scanned image PDFs.