Where VFC is binary and optimized for speed, VFJ is a text-based representation that is both human-readable, and also potentially good for interchange with, or analysis by, other apps. This is a JSON-format FontLab VI native file. In addition, the format is designed with the potential to be largely upward (future) compatible. The format is cross-platform-compatible so VFC files saved from the Windows version can be opened in the Mac version and vice versa. It is binary and optimized for fast reading and writing by the computer, to make working with it very quick.

VFC for FontLab is like PSD for Adobe Photoshop. You cannot install VFC files in Windows or macOS, but this format can retain all your font production elements. It is an extension to the FontLab Studio VFB format. The VFC file format is only used in FontLab VI (and potentially by future FontLab apps). VFC is faster, but VFJ is human-readable. Saving in any other format is actually an export and is likely to lose some elements such as glyph notes, pins, element references, etc.

Both can keep all elements used in the font design process. Making a Font From Color Vector GraphicsįontLab VI offers two native file formats for saving: VFC (binary) and VFJ (JSON based).Detecting Element References or Composites.

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