Step-by-step instructions for creating PDFs from any file type, including methods for merging, compressing and password-protecting PDF documents securely.

From Adobe Acrobat to free online editors and built-in tools, here’s how to merge multiple PDFs into one document.

A PDF — which stands for Portable Document Format — is an open standard document file extension created by Adobe. It has gained popularity in recent years because of the ease of use it affords the ...

You can easily change the default PDF viewer used on your Mac. The option to change your PDF viewer opens when you right-click on a PDF on your computer and select "Get Info." The default PDF viewer ...

You can convert HEIC files to PDFs on a Mac or Windows PC using the free Convertio website. On a Mac, you can also use the Preview app; open an HEIC file in Preview, click File in the menu bar, and ...

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.