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spellbinder-cli

v0.0.0

Published

Convert PDFs to EPUBs using AI

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Links

Git

Maintainers

dmotzdmotz

Keywords

pdfepubaigemini

Readme

🪄📚 Spellbinder

Convert PDFs to EPUBs using AI

Pre-LLM tools in this vein usually output an unreadable mess. Spellbinder leverages the built-in PDF processing and large context window of the Gemini API and is able to output high quality EPUBs ready for ereaders (usually).

Features

  • Clean, accurate outputs
  • Table of contents and chapter structure
  • Fixes OCR errors
  • Auto-retry when encountering API errors

Setup

Install:

npm i -g spellbinder-cli

Get a Gemini API key and either set it to SPELLBINDER_API_KEY in your shell, or pass it via the -k/--key flag when running spellbinder.

Usage

You can convert a PDF simply by passing it as the first argument:

spellbinder a-book.pdf

Progress logs will be emitted chapter-by-chapter during the conversion process and the final EPUB will be written to a-book.epub.

You can explicitly pass a different output path with a second argument:

spellbinder a-book.pdf a-better-book.epub

Current limitations

  • No images
  • No footnote linking
  • Some books could be chunked in a way that exceeds the output token limit

Pull requests are welcome if you figure out clever ways to address any of these.

Like books?

Try my other project, Emdash.