Sometimes when opening a PDF file, it will give off a security warning. The warning is displayed for PDF files that are transferred or run programs and macros that can be harmful to your computer.

PDF is an incredibly popular file format used widely for sharing documents. One of its biggest advantages is the ability to use everything, including fonts, vector graphics, and images, displaying the ...

Password protecting a sensitive PDF file is a great way to secure its contents from prying eyes. However, sharing a password-protected PDF can be a logistical nightmare, especially if the contents don ...