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 ...

Cloud storage services like Google Drive or Dropbox also offer ways to merge PDFs. By uploading your documents to these ...

Gimp is normally used to create or manipulate images files, but can also work with PDFs if you understand how it works and what it's limits are. If you’ve never used Gimp—a free image editor available ...

Your iPhone has the ability to view, download, edit, and save PDF documents to the Apple Books app or iCloud Files. You can download PDFs that have been sent to your ...