robflynn / pdftoimage

A ruby gem for converting pdfs to images.
MIT License
32 stars 24 forks source link

= pdftoimage

== Description

PDFToImage is a ruby gem which allows for conversion of a PDF document into images. It uses poppler_utils to first convert the document to PNG and then allows usage of ImageMagick to convert the image into other formats.

The reasoning behind using poppler_utils is due to the fact that ghostscript occasionally has trouble with certain PDF documents which poppler_utils seems to be able to parse without error.

== Examples

require 'pdftoimage' images = PDFToImage.open('somefile.pdf') images.each do |img| img.resize('50%').save("output/page-#{img.page}.jpg") end

require 'pdftoimage' PDFToImage.open('anotherpdf.pdf') do |page| page.resize('150').quality('80%').save('out/thumbnail-#{page.page}.jpg") end

require 'pdftoimage' PDFToImage.open('anotherpdf.pdf') do |page|

Set the resolution to 350dpi

page.r(350).save('out/thumbnail-#{page.page}.jpg")

end

== Requirements

poppler_utils

ImageMagick

== Install

$ gem install pdftoimage

== Copyright

Copyright (c) 2023 Rob Flynn

See LICENSE for details.