Image Watermark
Add a text watermark to your images
Drop your files here
Click to choose a file
Supported: PDF · JPG · PNG · WebP
Drop several images at once for batch processing
Up to 50 MB per file
Add a tiled diagonal text watermark across an image — a brand name, FOR VERIFICATION ONLY, DO NOT REDISTRIBUTE, a recipient's name — so photos, portfolio pieces, and document scans can be shared without being lifted. Because the watermark is applied in your browser, sensitive images like ID scans and bank documents are never uploaded anywhere.
Three steps: drop your images in, type the watermark text and set opacity between 5% and 60%, then process and download. The text repeats diagonally across the whole image, so it can't be cropped out of one corner, while staying translucent enough to leave the content readable. Drag in multiple images and they're processed one by one and packaged as a zip. The original file format is preserved.
Frequently asked questions
- Do my files get uploaded?
- No. The watermark is applied locally in your browser and the image never leaves your device — which is the whole point when you're watermarking an ID or a private document before sending it to someone.
- How do I set the right opacity?
- The slider runs from 5% to 60%; lower is fainter. For document and ID scans, 20–30% works well: unmistakable to anyone who tries to reuse the file, still light enough that the details underneath are legible.
- Can I watermark a whole batch?
- Yes. Drop in up to 50 images and they're processed one by one and packaged as a zip.
- Are there usage or file-size limits?
- Runs are unlimited. Files can be up to 50 MB, and batch tools accept up to 50 files at once.