ciromattia/kcc — what it is and what it’s for

About the project

Comic and manga converter for E-ink ereaders (Kindle, Kobo, ReMarkable): optimizes images for the device screen, removes margins and shrinks file size.

Useful for

Convert a CBZ manga volume to AZW3 matching a specific Kindle model's resolution
Shrink a 600 MB comic PDF bundle to ~100 MB to save ereader storage
Build a fullscreen margin-free EPUB for KOreader

README summarized by DeepSeek V4.1 Flash. Details may be inaccurate.

Why it’s trending

4 stars so far today, about 8 expected by the end of the day.
Hacker News: “Show HN: Using 2D DFT, dithering, etc. to maximize eInk manga image quality” — 18 points, 1 day ago.

Stars per day

Bars are daily stars, the line is the usual pace. Red marks spike days.

Numbers

Total stars: 5,712
Today: 4 · ≈ 8 by evening
Forks: 358
Issues and pull requests: 1,416
Watchers: 48
Language: Python
License: ISC
Latest release: v12.0.0 · September 26, 2026
Created: November 30, 2012
Last push: September 30, 2026

Star trust

Growth looks organic: forks and discussion are in line with active projects, and stars arrive unevenly, the way people give them.

These are heuristics, not a verdict: we judge by the repository’s behavior, not by a list of stargazers.

Hacker News discussions

Show HN: Using 2D DFT, dithering, etc. to maximize eInk manga image quality18 points, September 28, 2026

Spotted in

September 30, 2026Spotted on Hacker News

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