Home Forums Mac Software Mac Operating Systems Locking PDF files?

You too! The solution is here: Print>save as PDF. In the dialog box (where to save and how name a file) there is a button "security settings". It allows to password-protect the PDF file. But as many have pointed out, there is a multitude of ways to bypass it. As I mentioned earlier, a nice app PDFprotect will deprotect any PDF instantly. Copyright should be enforced by other ways, I think.