Open Source · MIT · macOS · 100% Offline
reepub
**Bind your own paper into a personal library.**
Not a file converter — a capability you own: studio-grade OCR that lives on your shelf, not someone's cloud. A native macOS tool that turns the scanned PDFs, web pages and broken EPUBs you own into clean, reflowable EPUB3 books that pass the official epubcheck at zero errors. Apple Vision OCR, Traditional Chinese + English, everything processed on your own Mac and never uploaded.
How it works
1.
Pick a PDF
Open the native app and choose a scanned PDF, or drag it onto the window. Apple's Vision framework runs OCR entirely on-device — Neural-Engine-accelerated on Apple Silicon.
2.
Set the metadata
Give the book a title and, optionally, an author or source. reepub stitches OCR lines back into real paragraphs and splits chapters from heading cues.
3.
Save the EPUB
Hit Save EPUB — reepub assembles a standards-compliant EPUB3 (cover, table of contents, per-chapter XHTML), runs a built-in validator, and writes the finished book. Nothing ever leaves your Mac.
What's inside
You own it, not rent it
Cloud OCR is a borrowed library card — revocable, priced per page, your files routed through someone else's servers. reepub is the book on your own shelf: free, offline, yours. No one can reprice it or switch it off.
Apple Vision OCR
On-device text recognition, Neural-Engine-accelerated on Apple Silicon, with Traditional Chinese and English out of the box. The OCR also ships as its own command-line tool.
Truly reflowable
Text is rebuilt into real paragraphs and chapters that reflow on any screen — not a frozen page image. Low-text pages are preserved as image plates.
Validated EPUB3
Every book passes a built-in, dependency-free structural validator before it's handed back — auto cover, table of contents, and chapter detection included.
Your paper, your library
Free and open source — yet its headline is exactly what paid clouds can't sell you: ownership, privacy, permanence. reepub is for digitizing documents you own or have the right to digitize, into a personal ebook library you keep locally. Build it from source with the Xcode Command Line Tools — no full Xcode, no cloud, no cost.