Adobe Acrobat file format: Abbr

• Sharable file extension
• Freebie from Adobe
• Sharable PC file
• Many a fillable document
• Alternative to a Word file
• Many a downloadable form
• Alternative to a print version: Abbr.
• Digital doc format
• File that may be read-only

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
by 1992, initialism (acronym) for portable document format , a generic term.