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As expected, Dropbox and Adobe are announcing today that people can now open PDF documents stored in Dropbox using the Adobe Acrobat Reader app on Android devices. This lets users of the apps sign, ...

Adobe's portable document format (PDF) has become a standard for exchanging and distributing documents. PDF files look like the original document would look if it were printed, and can be read on just ...

Lance Whitney is a freelance technology writer and trainer and a former IT professional. He's written for Time, CNET, PCMag, and several other publications. He's the author of two tech books--one on ...