Image Watermark Adder
Add text, logo, QR code or invisible watermarks to images — free, browser-only, bulk 20 files.
Upload your image, customise your watermark — text, logo, QR code, copyright stamp — adjust opacity, position and size, then download. No server upload. Your images stay on your device.
Drop your image here or click to upload
JPG · PNG · WebP · GIF · BMP — any size
Frequently Asked Questions
How do I add a watermark to an image online?
Upload your image, choose a watermark type (text, logo, QR code, or copyright), customise the style and position, adjust opacity, and click Download. No software to install — works in your browser.
Can I add a logo watermark instead of text?
Yes — switch to Logo mode, upload your PNG logo file (transparent PNG recommended), then set its size and position. The logo is composited onto your image at full native quality.
What is a tiled watermark?
Tiled mode repeats your watermark across the entire image in a grid pattern. This makes it harder to crop or clone-stamp out — ideal for protecting stock photos or portfolio work.
What is steganography / invisible watermark?
LSB (Least Significant Bit) steganography hides a text message in the pixel data of an image. The change is invisible to the human eye, but the message can be extracted using this tool. Output must be PNG (lossy formats destroy the data).
Can I watermark multiple images at once?
Yes — go to the Bulk tab, upload up to 20 images, and click Watermark All. The same watermark settings are applied to every image and the results are packaged in a ZIP file for download.
What output formats are supported?
JPG, PNG, and WebP. Use PNG to preserve transparency in logos. Use WebP for the best size-to-quality ratio for web use.