mupdf

Crystal bindings for MuPDF, a library for managing PDFs and converting them to and from other formats.

Installation

1. Add the dependency to your shard.yml:

   dependencies:
     mupdf:
       github: jgaskins/mupdf
   

2. Run shards install

Usage

Convert PDFs to PNGs

require "mupdf"

# You need to instantiate it with the version of MuPDF you have installed.
converter = MuPDF::ImageConverter.new("1.27.1")

# Save a specific page as a PNG file
converter.convert_to_png("input.pdf", "page0.png", page_num: 0, dpi: 150)

# Get the total number of pages
puts converter.page_count("input.pdf")

# Get raw RGB pixel data for a page
pixels = converter.get_image_data("input.pdf", page_num: 0, dpi: 300)

Contributing

1. Fork it (https://github.com/jgaskins/mupdf/fork)
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• Jamie Gaskins - creator and maintainer