GS Ruby

Simple wrapper for the Ghostscript command – it's assumed that you have the gs command installed.

Note: This was developed against version 9.20 of the Ghostscript command and is a work-in-progress. No doubt there are some issues (perhaps even major ones – namespacing, for instance?).

For more detailed documentation, take a look at the source docs –


Add this line to your application's Gemfile:

gem 'gs-ruby'

And then execute:

$ bundle

Or install it yourself as:

$ gem install gs-ruby


Typical usage might look like:'', GS::OUTPUT_FILE => 'output.pdf')

Or using a block to work with the command before it's run:'') do |command|
  command.option(GS::OUTPUT_FILE, 'output.pdf')


Global configuration is possible:

GS.configure do |config|
  # ...


By default all output is logged to $stdout, but the logger can be configured:

# For a single command instance.'') do |command|
  # command.logger =

# For all command instances.
GS.configure do |config|
  # config.logger =


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at


The gem is available as open source under the terms of the MIT License.

Copyright (c) 2017 Lawrance Shepstone