www.makemkv.com

I like I can switch them on and off on a bluray. But on a MKV file its not so easy, sometime I just have to leave them on or have them forced just to see them. If thats the case whats the best software to adjust there size and position without screwing around with the sync of them to the video. Sometimes they are huge and I would like them to be as unobtrusive as possible.

MKVToolNix will allow you to change the flags on the subtitles so they are forced or optional.

Just looking for an easy to use program to maybe reduce the size of the Subtitle and put them a little lower. MKVToolNix I have to admit is not the easiest thing to use, although I haven't had a lot of time to use it.

Some players have controls and settings for where subtitles are displayed. Might want to start there.

I came across software called Subtitle Edit. I've used it to compare subtitle tracks when there are multiples. Don't know if it will do what you need but it is free, open source.

Yes you are quite right, I got Subtitle Edit as well and so far its been working great. Very easy to use and above all its very fast too.

Some players (Roku for example) don't support Blu-Ray's raster subtitle format. I use MKV Subtitle Convertor to OCR them into text formats that my Roku does support. It is a little bit of a process to set up, as you need to also install Tesseract OCR and download language files for each language you want it to support. But once done I've found this to be the best subtitle OCR I've used. Better then any online convertor.