Programmatically fill out an existing fillable PDF file with Ruby on Rails
<p>Could anyone recommend an open-source library or gem for Ruby on Rails that could programmatically fill out an existing fillable PDF file?</p>

<p>After an extensive search I haven't been able to find much, other than the <a href="https://github.com/jkraemer/pdf-forms" rel="nofollow">pdf-forms</a> gem, which uses <a href="https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/" rel="nofollow">pdftk</a>. Unfortunately, pdftk does not work on RHEL/CentOS 7 or other latest linux platforms, which leaves me looking for alternatives.</p>

<p>Thanks in advance!</p>