PDF is good for printing, but that's it. Don't use it for online presentation.
Since then more and more devices can handle reading and outputting PDFs, but have things changed considerably with respect to the usability / UX of PDFs? Have there been any recent studies on what users think of PDFs?
What is the general rule of thumb for when something should be in PDF format versus HTML?
Benefits of PDFs
- Good for maintaining a precise formatting (for printing)
- Can be easily saved/copied/etc because it's in one file