.gsf PostScript type-1 font
Other formats
| MIME type | application/x-font-type1 |
|---|---|
| Description | PostScript type-1 font |
| Category | Other formats |
| Signature (magic bytes) | 25 21 46 6F 6E 74 54 79 70 65 31 2D 31 2E (%!FontType1-1.)4C 57 46 4E (LWFN) |
| Based on | application/postscript |
| Other extensions | .pfa, .pfb |
Frequently asked questions
What is a .gsf file?
A .gsf file is a “PostScript type-1 font” (MIME type application/x-font-type1).
How do I open a .gsf file?
With the program that created the file. On Linux, xdg-mime query default with the MIME type shows the default application, and xdg-open opens the file with it.
How can you tell a genuine .gsf file?
By the bytes at the start of the file, the signature (magic bytes): 25 21 46 6F 6E 74 54 79 70 65 31 2D 31 2E (%!FontType1-1.) and 4C 57 46 4E (LWFN). On Linux and macOS, file --mime-type example.gsf checks the real type regardless of the extension.
Which format is .gsf based on?
Technically a .gsf file is a subtype of “PostScript document” (application/postscript), so programs for that base format can often read it too.
Which MIME type belongs to .gsf?
The MIME type is application/x-font-type1. In the Apache web server: AddType application/x-font-type1 .gsf; in nginx: types { application/x-font-type1 gsf; }.