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Add a text or logo watermark to any PDF or image. Choose position, opacity and rotation. Fast, free and secure.
Stamp your PDF documents or images with a custom text watermark or your own logo. Control the position, opacity, and rotation — everything runs directly in your browser, completely free.
Add a watermark in 4 simple steps
Select or drag & drop a PDF or image (JPG, PNG, WEBP).
Pick a text watermark or upload your own logo image.
Set opacity, rotation and position — or tile it across the page. Preview it live before downloading.
Click "Add Watermark" and your file downloads instantly.
Flexible watermarking, zero hassle
Stamp a custom text message or your own logo image.
Place your watermark exactly where you want, combine multiple spots, or tile it across the page.
Works on both PDF documents and JPG, PNG, or WEBP images.
Your files never leave your device — everything runs locally in your browser.
Even large files get watermarked and downloaded in seconds.
No hidden fees, no extra watermarks, no file limits.
Watermarking is useful for many document and image types
Use low opacity (20-40%) so the watermark doesn't obscure the original content.
The classic diagonal look (rotation around -30°) is the most common style for "DRAFT" or "CONFIDENTIAL" stamps.
Use "Repeat / Tile" mode for maximum protection against cropping — copies appear across the whole page.
For logos, a transparent PNG works best so the watermark blends naturally.
Yes! Mishu PDF's Watermark tool is 100% free — no hidden charges, no subscription, no extra watermarks added.
Yes, simply tick more than one position (e.g. Top Center and Bottom Center) and the watermark will be stamped at every position you select.
Yes, this tool automatically detects whether you uploaded a PDF or an image (JPG, PNG, WEBP) and applies the watermark accordingly.
Yes, switch to "Logo Image" mode and upload your own PNG, JPG, or WEBP logo file to use as the watermark.
Absolutely. Your files are processed entirely in your browser — nothing is ever uploaded to any server.