fwiw there are tools to remove the copy protection / "unlock" the pdfavailable on github, like this one[1] for windows and a number of them[2] for *nix based on

fwiw there are tools to remove the copy protection / "unlock" the pdfavailable on github, like this one[1] for windows and a number of them[2] for *nix based on qfed[3] or ghostscript 1: https://github.com/abatsakidis/PDFDeSecure https://github.com/abatsakidis/PDFDeSecure 2: https://www.google.com/search?q=remove%20pdf%20copy%20protection%20site%3Agithub.com https://www.google.com/search?q=remove%20pdf%20copy%20protec... 3: https://github.com/wilfredwee/wilfred-TILs/blob/master/command-line-pdf/decrypting-a-pdf-file-without-owner-password-on-the-command-line.md https://github.com/wilfredwee/wilfred-TILs/blob/master/comma...