One of the easiest ways to read articles offline is to save them as a PDF, and thanks to a handy feature provided by Apple, it's effortless to do on your iPhone and iPad. Saving a webpage as a PDF ...

Ryan Cordell has recently rounded up various systems for managing and annotating PDFs. (See his original post, and the follow-up.) Those posts focused mostly on assimilating PDFs into your research, ...

Want to go completely paperless? Here's how to better manage PDF documents on iPhone and iPad! Photo: Ally Kazmucha/The App Factor PDF handling on the iPhone and iPad has vastly improved over the last ...

UPDF has always been a fantastic PDF editor for iPhone, iPad, and Mac. PDF features like annotation, editing, converting, optical character recognition (OCR), protecting, filling, and signing are easy ...