Please, don't bother with passwords on the documents.

Once in a while I receive a zip password protected. Ark or XArchive sometimes
fail to open it. But '7z' seems to be smarter.

To uncompress a zip password protected.

# 7z e -pPASSWORD FILE.zip

And the same problem with pdf files. KGhostview fails, but Kpdf or Xpdf ask
you for the password. When the document is opened, just print it to another
pdf file. This second one doesn't have password, so you can forget the first
one and the password.

Keywords: pdf, zip, linux, uncompress, password.