Editing Foolscap folio (section)

==F4==
{{see also|Paper size#F4}}
'''F4''' <ref>{{Cite web|url=https://paper-size.com/size/f4-transitional-sizes.html|title=F4 Size in CM - Transitional Paper Sizes|website=paper-size.com}}</ref> is a paper size {{cvt|210|x|330|mm|sigfig=3}}.<ref>{{Cite web|url=http://www.prographic.com/Paper_sizes/body_paper_sizes.html|archiveurl=https://web.archive.org/web/20040704181010/http://www.prographic.com/Paper_sizes/body_paper_sizes.html|url-status=dead|title=Prographic paper sizes|archivedate=July 4, 2004}}</ref> Although metric, based on the A4 paper size (210 mm × 297 mm), and named to suggest that it is part of the official [[ISO 216]] paper sizes, it is only a ''de facto'' standard.

It is often referred to as (metric) "foolscap" or "folio" because of its similarity to the traditional foolscap folio size of {{cvt|8+1/2|x|13+1/2|in|sigfig=3}}.