How to edit a PDF

Is there any way to exchange text (in this case the bank account) in an existing PDF (in this case an invoice)?

Yes. But not in DEVONthink. Acrobat can do that. But it’s another question what your local legislation thinks about altering invoices, if they are relevant for tax purposes. At least in Germany, this is a criminal offence, I think.

thanks for the counselling. My question was just, if this was possible within DT. So, this seems NOT to be possible.

No, it’s not possible to edit the text of a PDF in DEVONthink.