I don't know if this is how it works or not, but it is worth noting that searching for text in images is a much easier problem than transcribing images, and if you do the latter as "step 1" you destroy your ability to do the former: if you search for some piece of text you want to find all images that maybe if you squint a bit could be that piece of text, which allows you to deal with cases where your recognition is forced to make a bad guess that does the moral equivalent of rebracketing symbols that is difficult to work around in a later text-only search pass. If you can at all avoid it, always avoid transforming your input information until you know your query, lest you destroy information (this is what always made Microsoft Journal so epic for me, though I should be clear that I haven't used it in 15 years so for all I know they forgot this).
