Digitally sign PDF files from your commandline – open-pdf-sign
If only banks knew this!They actively coax you into receiving your bank account statements as PDF, but I haven't found ANY bank which signs the PDFs (while bragging about security all the time).I wonder what happens if they lose your money due to bugs or even intentionally - will they then happily accuse you of forging the PDFs because they're unsigned?With paper that'd be not so trivial, in my country the paper often has some special format and the paper itself is of a special type, and it ages and you cannot easily guess the printer which was used.Hence I still demand all my statements on paper. Same for utility companies, health care, and other institutions which want to convert their regular physical bills to PDFs.I also demand paper because the concept of forcing the customer to manually go to N websites every month to download PDFs is idiotic. Nobody pays me for that wasted time of my life.A paper mailbox instead is a central place where I can retrieve all of my documents easily in O(1). I wonder how many decades it will take the IT industry to realize that?