Related Clues:

• Contract file type, often
• File format created by Adobe
• File that may be read-only
• File shareable on a PC or Mac
• JPEG alternative, at times
• E-ticket file type
• File that might be e-signed
• Adobe file type
• Many a fillable document
• Resume file extension, often
• Downloadable form, often
• Familiar file format
• File format whose F stands for 'format'
• Adobe Acrobat file
• E-signature holder, maybe