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Thumbmark maker

Remove a light background from an ink-print photo.

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How to use Thumbmark maker

  1. Choose your source files.
  2. Review settings, limits and the preview.
  3. Process locally, then download and review the result.

Exports a transparent black PNG using pixel thresholding. Up to 4 million pixels. No biometric identification, AI or upload; inspect the result before use.

Files are processed in this browser. No signup or watermark. Keep your originals and review important results. Privacy and limitations · Contact Hari Krishna