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" ...

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, ...

The PDF format reigns supreme whenever we talk about the most common document formats. It's used by businesses, students, and researchers alike to handle reports, contracts, presentations, and more.