Portable document format (PDF) files remain a popular choice for business documents ranging from contracts and forms to manuals and reports, so there's a good chance you need to open them often.

Maybe you have faced this problem some time. You just forget to decrypt the file first and instead directly copied the file in its encrypted form to another Windows computer. Now when you try to open ...

There are times when a PDF truly needs encryption—for instance, if it contains sensitive information and someone just emailed it to you (let’s hope they used another communications method to send you ...