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.

Ubuntu's Gnome-based graphical user interface lets you open and view business documents saved in the PDF format using the Nautilus file manager and a few mouse clicks. Since Ubuntu is a Linux ...

There are two simple ways to remove the password from a PDF file, one of which works no matter what software you have.

A PDF is a suitable file format for creating and reading e-books. However, if you want to open an e-book in most e-readers, like the Amazon Kindle and B&N Nook, you must first convert it to an EPUB.

You can convert Apple's HEIC files to PDF on a Mac or Windows computer using the free Convertio website.

From housing contracts to business deals, PDFs seep into just about every area of the internet as the official document format you need to get things done. But sometimes using the popular format means ...

Use Preview: Open the PDF in Preview, click File > Export, select “Reduce File Size” under Quartz Filter, and save. Use ColorSync Utility: Open the PDF in ColorSync Utility, click File > Export, ...