A step-by-step guide to converting PGS subtitles to SRT. PGS tracks are images, so they need OCR — here's the fastest way to turn a Blu-ray .sup track into clean, editable SRT text.
An honest look at the tools for converting PGS and VOBSUB subtitles to SRT — Subtitle Edit, BDSup2Sub, ffmpeg, MKVToolNix — and when a browser-based alternative is the easier choice.
What is a PGS subtitle? What's VOBSUB, or a .sup or .sub/.idx file? A plain-English guide to image-based vs text-based subtitles — which ones you can edit, and which need OCR.
How to extract subtitles from an MKV — free for text tracks (SRT, ASS, WebVTT) and via OCR for image tracks (PGS, VOBSUB). A quick way to tell which kind you have and get an SRT.
DVD subtitles use VOBSUB — bitmap images stored as .sub and .idx. Converting VOBSUB to SRT needs OCR. Here's how to turn a DVD subtitle track into clean, editable SRT text.
Many MKVs already carry text subtitles — SRT, ASS/SSA, or WebVTT. You can extract them free, in your browser, with no OCR and no account. Here's how, and how to convert ASS to SRT.
Blu-ray subtitles are images, not text. Here's how PGSExtract turns them into clean, editable SRT — and how to grab text subtitles for free.