To convert a TTC (TrueType Collection) file to TTF (TrueType Font), the best approach is to "unpack" or "split" the collection rather than performing a standard file conversion. A TTC file is essentially a bundle containing multiple TTF fonts. Best Methods for Conversion
Converting TTC to TTF is straightforward with the right tools. FontTools provides the most reliable, scriptable method that preserves internal tables; FontForge is useful for manual fixes and inspection. Always validate outputs and respect licensing. convert ttc font to ttf best
If you still want to proceed, here are the safest options: To convert a TTC (TrueType Collection) file to
FontForge-Fusion scanned its memory. It had seen this before. Three ways to break the cage. scriptable method that preserves internal tables
Pros:
Transfonter: An excellent tool specifically optimized for web fonts.