Quba is a
Open-source / Free / Cross-Platform
Viewer for electronic invoices
We are Quba
Mustang's focusses on the creation, validation and parsing of electronic invoices. Validation also re-calculates important parts of these invoices. Quba covers the visual display for manual checks.
With todays’ (2021-07-27) version 0.5 of Quba PDF-files can be opened. If the PDF file additionally contains embedded XML like Factur-X/ZUGFeRD-invoices do, a second tab
What about the name? Apart from being the name of a city in Azerbaijan, it also is the name of the horse breed originating from there. This name, like other horse names (Konic, Mustang) is a homage to the initiator of Factur-X / ZUGFeRD, the Forum of the Electronic Invoice Germany (“FeRD”, an accoustic allusion to the German word for horse).