The Swiss firm Wilhelm Tux has started a public fundraising campaign to add the creation of digitally signed PDF documents directly in LibreOffice. "The Office Suite LibreOffice can already digitally sign normal office documents in its native, ISO-certified ODF format, but it cannot do this for the PDF documents it is able to generate from them. But once the "experimental features" of LibreOffice are activated in the Options tab, the function "Export as PDF" will show an additional tab "Digital Signatures" with the corresponding functionality. Which, at the moment, does not work satisfactorily though, because the code that was developed in a "Google Summer of Code" project in 2012 could not be finished at that time. But the code is there and thanks to the work done then, there remains a mere estimated 8 days of development to finalize the feature. After talking to LibreOffice developers, Wilhelm Tux has chosen the company Collabora as an ideal partner. Collabora merges all of the modifications and extensions done for customers back into the main LibreOffice project. The additional feature "digital PDF signatures" therefore will remain Free Software!"

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