Features
Blind watermark is an invisible digital watermark technique, commonly used for copyright protection and anti-counterfeiting. This tool uses LSB (Least Significant Bit) algorithm to embed watermark info into image pixels without affecting visual appearance.
- !Add Watermark: Supports batch adding invisible text watermarks to images.
- !Decode Watermark: Upload an image with a blind watermark to restore the hidden text.
Note: LSB blind watermarks have weak anti-interference capability. Image compression (e.g., via WeChat), cropping, or scaling may cause watermark loss. Saving in PNG format is recommended to preserve watermarks.
How to Use
Add Watermark
- Switch to the "Add Watermark" tab.
- Upload one or more images.
- Enter watermark text and set font size.
- Click "Generate & Download" to automatically package and download processed images.
Decode Watermark
- Switch to the "Decode Watermark" tab.
- Upload an image suspected to contain a blind watermark.
- Click "Decode Watermark" and observe the result area on the right; hidden text will appear.