What is an AFM file?
An .AFM file is primarily an Adobe Font Metrics File developed by Adobe Systems. It stores detailed measurement information about a specific PostScript font. This data includes character widths, bounding boxes, and kerning pairs. Operating systems and design software use this information to space text correctly on a page. Because the .AFM extension has multiple uses, it might also be an AFF Metadata File used for digital forensics by Basis Technology.
How to open AFM files?
Because Adobe Font Metrics Files contain human-readable text, you can open them with standard text editors. You can use Notepad on Windows or TextEdit on macOS to read the metric data. Professional design software like Adobe Illustrator processes these files automatically when you use PostScript fonts in a project.
Inspecting AFM files online
Because the .AFM extension has multiple possible meanings, viewer.online/afm can analyze .AFM files to identify the exact format and creator software. It allows you to inspect the file structure, extract readable text, and check whether an online preview is available. This helps you determine if your file is a font metric or a forensic metadata file.
Conversion and Summary
If you need to use the legacy font data in modern applications, you can convert your font files to sensible target formats like .TTF or .OTF on convert.guru. Ultimately, viewer.online/afm is useful for identifying, inspecting, and understanding .AFM files without installing software or dealing with compatibility problems.