💧 Add Watermark to PDF
Stamp a text or image watermark on any PDF. Choose from font, color, opacity, rotation, and tiled or centered layout — 100% in your browser.
Select or drop your PDF file here
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How to Add a Watermark to a PDF
Upload PDF
Drop your PDF into the box above or click to browse your files.
Design Your Watermark
Choose text or image, customize color, size, opacity, rotation, and layout.
Apply & Download
Click "Apply & Download" — the watermarked PDF saves instantly.
Frequently Asked Questions
Centered places one large watermark in the middle of the page — ideal for logos or a single "CONFIDENTIAL" stamp. Tiled repeats the watermark in a grid across the entire page, which is harder to remove and great for security documents.
Yes. Switch to "Image" mode in the sidebar and upload any PNG, JPG, WEBP, or SVG. PNG with transparent background works best for logos. You can scale it from 5% to 90% of the page width.
Text watermarks are embedded as real, selectable PDF text using standard fonts. Image watermarks are embedded as regular PDF images. Both can be removed by advanced PDF editors, so this is deterrence, not DRM. For permanent protection, flatten or rasterize the PDF after watermarking.
Yes. Choose "Custom Range" from the "Apply To" dropdown and enter a range like 1-5, 8, 11-13. Leave it on "All Pages" to watermark every page.
No. The entire process — preview rendering and watermark embedding — happens in your browser using pdf.js and pdf-lib. Your file never leaves your device.
Not currently — the tool uses PDF's built-in fonts which only support Latin-1 characters. For Arabic, Bengali, Chinese, Japanese, Korean, or Cyrillic text you'll need to embed a custom font, which is on our roadmap.