Add Watermark to PDF Online for Free
Stamp any PDF with a text or image watermark using ToolMint. Adjust the position, alignment, rotation, opacity, and mosaic tiling, then choose which pages to apply it to — all in your browser with no file upload required.
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Drop your PDF here or browse
Add text or image watermarks, choose position, transparency, rotation, and preview instantly.
How to Add a Watermark to a PDF
1
Upload a PDF
Drag & drop or select the PDF you want to watermark.
2
Choose watermark type
Add a text watermark or upload an image to use as the watermark stamp.
3
Adjust settings
Set position, alignment, rotation, opacity/transparency, mosaic tiling, and page range.
4
Download
Preview the watermarked PDF and save it to your device.
Frequently Asked Questions
- Can I add an image watermark instead of text?
- Yes. ToolMint supports both text and image watermarks. Upload your logo or any image and position it anywhere on the page.
- Can I tile the watermark across the whole page?
- Yes. Enable mosaic mode to repeat the watermark in a grid pattern across the entire PDF page.
- Can I control which pages get the watermark?
- Yes. Use the page range selector to apply the watermark to all pages, odd pages, even pages, or a custom range.
- Will watermarking change my PDF quality?
- No. Watermarks are drawn as vector overlays on the PDF canvas — no re-encoding or quality loss.
- Is my file private?
- Yes. All processing runs entirely in your browser. Your PDF is never sent to a server.