Historical clue formulations

• Pic file format — 2026-08-27
• File format for a profile pic — 2025-07-29
• Image format, familiarly — 2025-03-26
• Image file format — 2024-11-21
• Visual file format — 2024-09-01
• Pic file format — 2023-08-07
• Form of attachment? — 2022-08-24
• Format of a digital pic — 2020-10-22
• Digital image format — 2019-05-29
• Relative of a .png file — 2018-09-15
• Picture file format — 2017-07-11
• Compressed file format — 2016-05-22
• Compressed pic, of a sort — 2014-01-29
• Emailed pic, often — 2014-01-20
• Digital image format — 2012-12-03
• Uploaded pic, often — 2012-10-28
• PC image acronym — 2011-07-23
• Image format — 2010-09-05
• PC image format — 2008-11-05
• Computer image file format — 2008-09-30
• Computer image file format — 2007-10-09
• Computer graphics file format — 2006-09-19
• Computer image file format — 2003-11-17