Portable Document Format files are secure and easy to read using free software, such as the industry-standard Adobe Reader program. Small businesses use PDF files to send information that is not meant ...

We may receive a commission on purchases made from links. Some people prefer ebooks over physical copies for the ease of collecting and commuting with them. There are a bunch of different formats in ...

“Is there any way to password-protect and lock a sensitive PDF file before sending it as an attachment through email? I cannot afford Adobe Acrobat Pro and free primopdf didn’t work for me. Any help ...