tabula VS Rake

Another option would be JRuby. I routinely use an application called Tabula, which is built using JRuby and compiles to a Jar file. This, of course, requires Java on the target machine, but you can ship the Jar file and it will work. It's often easier to rely on a working Java environment than it is a working Ruby environment. Especially on Windows.

Idk if it has been suggested yet, tabulapdf is a self hosted solution to extract tables from PDF

For table extraction from pdfs, have a look at Tabula and Camelot, two open-source projects. They work well with clean tables, both the Tabula Python binding and Camelot allow you to export directly as a pandas dataframe. Otherwise AWS Textract API is very efficient at extracting tables from pdfs, regardless of how clean/messy they are.

No idea if it will work for you, but there is a git project that seems to do what you want https://github.com/tabulapdf/tabula

While trying to find a specific project I recalled, I encountered this list of projects which might be of interest: https://github.com/tstanislawek/awesome-document-understandi...

The project I had in mind was similar to this one but I can't remember the name currently: https://github.com/tabulapdf/tabula

However, if you're looking for a ML-based, invoice-specific project looks like the other comment to your reply might be more useful.

Some competitors - Rake (ruby) - Bake - Earthly - SCons - doit

where every argument except the name can either be missing, single (value) or multiple (array). Sure, it has the "advantage" that it's syntactically valid Ruby code, but it then requires some 70 lines of awful code to actually parse that data into a usable construct ([1] up to L145).

[1] https://github.com/ruby/rake/blob/7b50e9dc37abc57fd365c16cb1...

Rake[0] is still the best ‘make-like’ build tool I’ve used for general purpose stuff. The syntax is nice and it’s just Ruby which is a delight. I briefly used Mage (similar, but Go) and it was fine too.

[0]: https://github.com/ruby/rake

Yup! Two well-established alternatives are "rake", in the Ruby community, and "just" in the Rust community.

Rake is fully programmable in Ruby. Just is a bit less flexible, but it doesn't require learning Ruby, and it's quite pleasant to use.

https://ruby.github.io/rake/

Rake is a great way to homogenize and declare common behaviors of your script (called "tasks"); a guide.

In Ruby there's a gem named Rake. This gem provides a DSL to create tasks to be run from the command line. A small example looks like this:

I think you're referring to Rake. https://ruby.github.io/rake/

We use [Rake](https://github.com/ruby/rake) instead - it's awesome.

If you've been working with Ruby on Rails for a while, you've come across Rake. Written by the late Jim Weirich, Rake is to Ruby what Make is to C. It's very easy to create custom Rake tasks to simplify your development workflows. Rails even provides a generator (rails g task) to create them for you.