OptiEPUB

OptiEPUB is a command-line tool for optimizing EPUB files by LunNova.

Installation

Install OptiEPUB using cargo:

cargo install optiepub

Features

• Image optimization with content-aware cropping
• Duplicate and unused asset detection and removal
• Automatic format conversion for efficiency (e.g., PNG to JPEG if transparency isn't needed)
• HTML reference updating and EPUB structure preservation
• Customizable optimization parameters

Usage

optiepub [OPTIONS] <input>

Example:

# Create output.epub from input.epub
# Use quality level 80 for JPEGs
# Resize images over 1200 pixels
optiepub -q 80 -d 1200 input.epub -o output.epub

Run optiepub --help for full option list.