FFmpeg Custom Font Directory

jay123210599 · 13th November 2025, 17:55

I have an .ass subtitle file. How do I use ffmpeg insert a directory of custom fonts so the subtitles only use them and NOT the system fonts, and export the result as another .ass file?

GeoffreyA · 13th November 2025, 19:39

I'm not sure if FFmpeg can do that; Aegisub can.

If you need to burn subtitles onto the video using fonts from a directory, use:

Code:

ffmpeg -i S01E01.mkv -vf subtitles=S01E01.ass:fontsdir="My Fonts":force_style="fontname=EB Garamond" -c:v libx264 OUT.mp4

13th November 2025, 17:55	#1 \| Link
jay123210599 Registered User Join Date: Apr 2024 Posts: 501	FFmpeg Custom Font Directory I have an .ass subtitle file. How do I use ffmpeg insert a directory of custom fonts so the subtitles only use them and NOT the system fonts, and export the result as another .ass file?

13th November 2025, 19:39	#2 \| Link
GeoffreyA Donor Join Date: Jun 2024 Location: South Africa Posts: 659	I'm not sure if FFmpeg can do that; Aegisub can. If you need to burn subtitles onto the video using fonts from a directory, use: Code: ffmpeg -i S01E01.mkv -vf subtitles=S01E01.ass:fontsdir="My Fonts":force_style="fontname=EB Garamond" -c:v libx264 OUT.mp4

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