Blind Watermark Decoder
Upload or paste an image containing a blind watermark, then adjust the options to reveal it.
Related: Blind watermark guide · Decode options
Image
Drop image here or click to upload
Images only · You can also paste with Ctrl+V or Cmd+V
Decode Options
| Image Background | |
| Blend Operation (compositeOperation) | |
| Composite Passes (compositeTimes) | |
| Fill Color (fillColor) |
Decoded Image
Upload an image to see the decoded result
Recognize Watermark Text
Rotate the decoded image so the watermark text is horizontal. This makes OCR ignore the original image text and focus on the watermark. The default 45° correction matches the library's default watermark rotation.
Recognition runs locally in your browser. The Chinese and English OCR models are downloaded the first time you use it.