Add Watermark to Image

Add text watermarks to your images with custom opacity and position. All processing happens in your browser.

Drop files here or click to upload

.jpg, .jpeg, .png, .webp, .gif, .bmp · Max 20 files

Or paste files with Ctrl+V

Your files never leave your browser

What is Image Watermark?

Watermark Image stamps a text watermark over your photo or graphic — for copyright, branding, or marking drafts. Adjust opacity, position, font size and rotation.

How to use Image Watermark

  1. Drop one or more images.
  2. Type watermark text and tweak appearance.
  3. Click "Apply Watermark".
  4. Download the watermarked images.

Why use AinnoBox

  • 100% browser-based — your file is never uploaded to a server
  • No file size limits imposed by us; only your device memory
  • Free with no sign-up, no email, no watermark on output
  • Works offline once the page is loaded
  • Strict Content Security Policy and HTTPS by default

Want to understand why AinnoBox processes everything in the browser rather than on servers? Read How It Works or check the FAQ.