[1] TIFF は画像形式です。

[3] RFC 1314 - A File Format for the Exchange of Images in the Internet, 2021-01-31T10:24:09.000Z, 2021-03-13T09:38:16.697Z https://tools.ietf.org/html/rfc1314

[2] Clipboard API Improvements | WebKit (2018-03-23 02:11:33 +09:00) https://webkit.org/blog/8170/clipboard-api-improvements/