Image Watermark
This free image watermark tool lets you drop or paste an image and stamp your own text across it — diagonal, tiled, or in the corner — with control over size, opacity and color. Works great for watermarking KTP, SIM, passport scans, and any photo. Everything runs on your device, so your images never leave your browser.
How to use Image Watermark
- 1 Drop or paste an image, or click to browse for one.
- 2 Type your watermark text and choose a layout: Diagonal, Tiled or Corner.
- 3 Adjust the scale, opacity and color sliders to taste.
- 4 Click Add watermark, then download the finished image.
Frequently asked questions
Is my image uploaded to add the watermark?
No. The watermark is drawn onto your image locally in your browser using a canvas, so the photo never leaves your device.
What watermark layouts can I choose?
Three: Diagonal across the image, Tiled repeating over the whole picture, or a single Corner stamp in the bottom-right.
Can I control how the watermark looks?
Yes. You can set the text, pick any color, and use sliders to adjust its scale and opacity so it's as subtle or bold as you want.
What format is the watermarked image saved in?
The download keeps your image's original format where possible, so a JPEG stays a JPEG and a PNG stays a PNG.
Can I use this to watermark a KTP or ID card photo?
Yes. Drop in a scan or photo of your KTP, SIM, passport or any identity document, type your watermark text (e.g. "COPY" or your name), pick Diagonal or Tiled layout, set the opacity, and download. Everything stays on your device — nothing is uploaded.