PDFs are extremely versatile for business, particularly for sending different types of formatted documents and media in one multi-page file. Brochures, presentations, contracts, text documents, ...

Ever wonder why that PDF with just text in it is somehow bloated to a massive file size? Why should something that would be under 500 kilobytes if it were a Text Edit file be two or three megabytes ...

PDFs created by OS X's built-in "Save as PDF..." option on the print menu have a tendency to bloat. OS X's PDFs are often a lot bigger than the ones you get from, say, Adobe Acrobat. (Not the "reader" ...