Both zathura and girara support translations as of version 0.1.1. Since we currently only provide German translation files we need your help to get them translated into other languages.
Transifex
transifex is an open source platform for localization which offers users an easy-to-use interface to submit translations to various projects hosted on a number of hosting platform types.
All of our projects are available on transifex and can be translated smoothly online:
Manually
If you don't want to signup on transifex, there is another possibility to help us: At first you have to check out the "develop" branch of girara or zathura. For girara this is done like this:
$ git clone https://github.com/pwmt/girara.git
$ cd girara
$ git checkout -b develop origin/develop
Now you can have a look at the files in the "po" directory. If you want to create a new translation, copy the pot file to "$name_of_the_locale.po" and start working on it. If you want to update an existing translation file just edit the file.
When you're done please submit your changes as pull request on Github.