Related Clues:

• 'This puzzle is relatively easy,' say
• PC file that's shareable
• Common attached file
• E-book format, often
• Adobe extension
• Many a downloadable form
• Computer file format ( Arconym )
• Electronic document format
• Acrobat file
• Shareable doc format
• Adobe creation
• Adobe doc suffix
• Many an emailed form
• Adobe file extension
• File type for many scholarly articles