Aug 17, 2023 12:30:00

Following Adobe, Microsoft also ended support for PostScript Type 1 fonts

Regarding the `` PostScript Type 1 font '' that was often used in

DTP , it was found that support for the Mac version of Office 365 ended with the update on August 15, 2023. Support for Type1 fonts has already ended in the Windows version, and Adobe will end support in January 2023.

Release notes for Office for Mac - Office release notes | Microsoft Learn
https://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac

Adobe and Microsoft break some old files by removing PostScript font support | Ars Technica

https://arstechnica.com/gadgets/2023/08/microsoft-adobe-and-others-have-dropped-support-for-old-postscript-fonts/

'PostScript Type 1 font' is a font released by Adobe in 1984. Since it is a vector format, it can be displayed clearly regardless of size, so it is possible to create a file that looks exactly the same on the screen and when printed, and was active in the DTP field from the 1980s to the early 2000s. .

On the other hand, Apple developed the ' TrueType ' format in the early 1990s and licensed it to Microsoft, not allowing Adobe to monopolize fonts. For this reason, Microsoft has used TrueType fonts since Windows 3.1.

After that, Adobe and Microsoft jointly developed a new format 'OpenType' to replace PostScript Type 1 and TrueType. Since then, many operating systems and software have come to use OpenType.

PostScript Type 1 continued to be supported even after it became mainstream, but Microsoft ended support for Windows version Office in 2013. The Mac version will finally end support in 2023.

Adobe will also end support for PostScript Type 1 fonts in January 2023.

End of support for PostScript Type 1 fonts
https://helpx.adobe.com/jp/fonts/kb/postscript-type-1-fonts-end-of-support.html

These end of support do not have a direct impact on general users, but there is a possibility that they will affect when handling old Word documents.