Need to modify, sign, or annotate a PDF document? Learn what PDF editor software are available and which one might best suit your needs. We've rounded up 30...

PDF documents have long felt impenetrable without Adobe Acrobat, but that's all changed. Here's how to quickly edit and convert PDFs into Word file format.

Skim is a powerful PDF reader and note taker for Mac, for academics, for reading and annotating documents. Advance uses can integrate Skim with Applescript,...

Bloated PDF files are a pain to share and download online, but you risk losing the original image quality when reducing a PDF's file size. This tutorial...

There's tons of open data available that's locked away inside tables in PDFs. Here's how to extract the data with the free tools Tabula and OpenRefine to...

Editing PDFs doesn't require a copy of Adobe Acrobat. Here's how you can edit PDFs for free on your Mac, PC, and the web.

It's easy to highlight a passage in an eBook, but there's so much more you can do with digital highlights. Here's everything you need to know to annotate...

"Paperless". It's been the dream since the 1970s, and we've been replacing the paper in our lives with pixels ever since. Here's how you can start going...

PDF (Portable Document Format) is a pretty standard means of passing information along. As freelancers, we have many opportunities to send and receive PDFs,...