Free Online Watermark Adder

Protect your images with custom text watermarks using our free online watermark tool. Whether you are a photographer watermarking your portfolio, a business branding product images, or a content creator protecting your visual assets, this tool gives you complete control over how your watermark appears.

Choose from six watermark positions: center, bottom-right, bottom-left, top-right, top-left, or tiled for maximum coverage. Adjust the font size from 12 to 120 pixels, set the opacity from subtle to bold, and pick any color using the color picker to match your brand or style. The tiled option repeats your watermark text across the entire image, making it ideal for preventing unauthorized use.

Our watermark adder uses the HTML5 Canvas API to overlay text on your image directly in your browser. The original image is never modified — a new watermarked version is created for download. Your images remain completely private as they never leave your device during processing.

Watermarking is an essential practice for photographers, designers, and businesses who share images online. It helps establish ownership, prevents unauthorized use, and promotes your brand every time your image is shared. With PIC0.ai, adding professional watermarks is free, fast, and private.