IrfanView with wine
To get the latest 64bit Version of IrfanView running on Ubuntu with wine, without snap - do the following:
winetricks mfc42
To get the latest 64bit Version of IrfanView running on Ubuntu with wine, without snap - do the following:
winetricks mfc42
Put all pdf's you want to combine in a directory. Name them in the order, you want to combine them.
qpdf --empty --pages *.pdf -- NameOfMergedFile.pdf