Watermark PDF
Add a text or image watermark — centered, tiled, rotated, and with adjustable opacity.
🔒 Processed locally in your browser.
Drop a PDF here or click to select
40%
25%
45°
How to watermark a PDF
- Drop your PDF into the box above.
- Choose text or image watermark.
- Adjust font, size, color, opacity, rotation, and position (or tile).
- Click Apply watermark.
Technical limitations
- Watermarks are baked into the PDF page content and cannot be removed afterwards. Keep a backup of the original.
- Rotation is applied to text via pdf-lib's degrees rotation, which rotates around the anchor point.
- Image watermarks support PNG and JPG.
Frequently asked
Can I remove a watermark later?
Not with this tool. Watermarks become part of the page content. Always keep a backup of your original PDF.
What's the best rotation?
45° for diagonal, 0° for horizontal center, 90° for vertical side text.
Does "Tile" fill the whole page?
Yes — it repeats the watermark in a grid covering the page.