Adjusting Font & Size for Hardcoded Subtitles on Mac Video Converter

In attempt to hardcode subtitles on video files (mp4, mkv, etc) with a mac; I discovered that most video encoding/converter software had no proper settings to adjust the subtitles — with a different (bigger) size and font.

These are macOS native apps that I’ve tested so far.

Adjust Subtitles

The “Good”

Currently the only viable known option is to use FFmpeg’s command line — but haven’t bothered with it so far. At least AFAIK.

Also I have yet to test VLC.

The “Bad”


– No font type settings
+ Have settled with this so far but size is smaller than desired


– Cannot adjust subtitle font or size

Wondershare Video Converter Ultimate for Mac
Aimersoft Video Converter Ultimate
iSkysoft Video Converter

+ Can change font type, size & subtitle position in encoding settings
– But no way to configure text outline or shadow (thickness, or the color).
+ Easy to transcode the video with the same quality as source

Video Converter Platinum
AnyMP4 Mac Video Converter Ultimate

– Poor to non-existant subtitle features (no way to add external subtitle files to video)
– No automated encoding settings

MacX Video Converter Pro

– Only possible to add subtitle, no settings, no preview possible.
– Complicated encoding settings

Total Video Converter Pro

– Only adding subtitles without any settings

Video Converter Movavi

+ Automatically convert to same quality as source
– Only adding subtitles with position. No font or size selections.

Xilisoft Video Converter Ultimate

– No support for subtitles


Suggestions, ideas? — comments most welcome!

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One comment

  1. This is a struggle for Mac, isnt’ it? So annoying. It’s so bad that Xilisoft, one of the good ones, does not support subtitles at all as it does in Windows. Contacted them, but no solution for mac.

    The only one that I am currenly using is Bigasoft Total Video Converter. It still has some limitation for the ‘srt’ format such as lack of small font increments, lack of outline settings or the subtitles aligning center in reference to themselves, but is one of the few who seems ok . But is good as far as “ssa” or “ass” formats are concerned.

    See if this helps

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