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PDF should be this nice universal format that many government institution now work with. But what if they require you to fill in XFA forms inside their template PDFs? The ones I need to fill for my insurance company are certainly not supported in the standard Document Viewer shipped with Fedora. This weekend I tried installing Master PDF Editor and guess what? It works like a charm for me. They even offer various RPM builds for CentOS 6/7. And they work on my Fedora out of the box. Lucky me. Thanks a lot for this!

Are you a freelancer? You don’t need to leave your command line to create invoices for your clients. InvoicePrinter is a Ruby library for producing PDF invoices without too much hassle. If you haven’t seen it before, you can read more about it in the announcement or its GitHub page. With the upcoming 1.1.0 release (currently as release candidate) a command line executable is included so you can now use command line to invoice your clients. No need to learn Ruby, just pass the data in the familiar JSON format! Here is how to create your first invoices.

Refinements is a Ruby 2.0 answer to monkey patches that can take control of your program without you realizing it. Next time you will be tempted to monkey patch something, think twice and consider using refinements.

At work we use ActiveModel::Serializer to serialize ActiveRecord objects into JSON:API-like responses for our APIs. The problem is that ActiveModel::Serializer is clever enough to dasherize our hash keys (so they can be accessed as properties instead of [] brackets syntax) and our hash keys are actually real keys that we have to serve untouched.

Not so long ago I announced first stable release of InvoicePrinter. I wanted to say that the API is stable and people to experiment with it. I am happy  to see that the project got already over 3 hundred stars and 20 forks. Wow, thanks! This kind of support motivates me to work on the next version more intensively.  Speaking of which… here is what’s coming in 1.1.0 release.