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Stamp text or an image watermark onto every PDF page. Customize opacity, position, color, and rotation. 100% browser-based and private.
Select any PDF up to 25MB. Your file never leaves your browser.
Choose text or image mode. Set opacity, position, rotation, color, and size to match your needs.
Click Add Watermark and download your stamped PDF instantly.
Yes. Switch to the Image Watermark tab and upload a PNG or JPG. You can adjust the scale, opacity, and position independently from text watermarks.
You can place the watermark at Center, Top-Left, Top-Right, Bottom-Left, Bottom-Right, or use All Pages Diagonal mode which tiles the watermark across the full page at 45 degrees.
The watermark is embedded directly into the PDF using pdf-lib. It cannot be removed by a simple click, though professional PDF editing tools could attempt removal. For stronger protection, consider combining with a PDF password.
No. All processing runs entirely inside your browser using pdf-lib. Your file is never sent to any server.