Hi Ulf, On 11/09/2019 19:58, Ulf Zibis wrote: > I have installed it on Ubuntu from PPA. > After Start it says, that package pdftk is missing, but I can not > install it with: > sudo apt install pdftk
pdftk is only necessary if you want to encrypt PDFs. Otherwise, you can ignore the warning. The package is called pdftk-java in Debian now, for the reasons that Mikhail gave. i.e. sudo apt install pdftk-java if you have Debian Buster or Ubuntu Cosmic or newer. Otherwise, Mikhail's solution should work, as would upgrading to a newer distro. Regards Jeff
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