by David Hakala

PDF (Portable Document Format) is a standard file format seen everywhere on the Web, in software documentation, and in business. The “official” reader program for PDF files is the Acrobat Reader by Adobe Systems Inc., which invented the PDF format. However, Acrobat Reader is a rather large (33.5 MB download), cumbersome program. There are slimmer competitors that don’t slow your system down as much as Acrobat Reader. There are even ways to view PDF files without any software installed on your system.
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