Dennis O'Reilly began writing about workplace technology as an editor for Ziff-Davis' Computer Select, back when CDs were new-fangled, and IBM's PC XT was wowing the crowds at Comdex. He spent more ...

Q: I want to save my resume in PDF format. On my sister's Macintosh computer, I can convert a Microsoft Word file to a PDF using the print command. But that's not available on my Windows computer.

Despite decades of innovation and file format changes, the venerable PDF is still commonly used to share documents, slideshows, photos and spreadsheets across the world. And that means people ...