All free flowsDark Scan to Light Reading PNG
Invert a dark raster reading copy, make it grayscale and add a white margin as one PNG.
Content processing stays in the browser; required runtime code/models load by GET. Retained originals preserve their original bytes and metadata. Local processing and re-encoding are not secure-erasure, redaction or anonymity guarantees.
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About this flow
Invert a dark raster reading copy, make it grayscale and add a white margin as one PNG.
Limitations
- One static PNG/JPEG/WebP,20MiB,4MP,8192pixels per source side.
- Fixed invert then grayscale; equal white padding0-2048pixels. No resizing or OCR.
- Every generated image must satisfy its actual byte/geometry contract; oversized padding can fail.
- Colors are intentionally changed. Inspect the whole PNG; arbitrary readability, ink saving and physical print quality are unproven.
