The software Google's browser uses to show PDF files has been proprietary for years, but now it's an open-source project called PDFium that others can scrutinize or use themselves. Stephen Shankland ...

Adobe Acrobat is widely used in business, and documents ranging from brochures to company reports are often shared in Acrobat's PDF file format. By default, Acrobat displays Web-based PDF documents ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. A file’s format—the way that it’s saved and encoded ...