PDF is used by everyone nowadays because of its convenience to open, create, read, review, and print documents regardless of the hardware device or operating system or software program you are using.

Free software on your phone or tablet lets you scan, create, edit, annotate and even sign digitized documents on the go.

Back in 1992, Adobe created the Portable Document Format file, now commonly known as the PDF and used to distribute everything from digital business documents to e-books. This Adobe file type isn't ...