Optimizing a PDF File

This example shows how to read a PDF file, optimize it and write it out again.

The heavy work is done by the :optimize task which allows control over which aspects should be optimized. See HexaPDF::Task::Optimize for detailed information.

The hexapdf binary provides an optimization command which does some additional operations like optimizing the page tree.

Usage:

ruby optimizing.rb INPUT.PDF

Code

require 'hexapdf'

HexaPDF::Document.open(ARGV.shift) do |doc|
  doc.task(:optimize, compact: true, object_streams: :generate,
           compress_pages: false)
  doc.write('optimizing.pdf')
end