How to glue texts (overlay one on top of the other) after scanning?

Question

ruby

I take a single image and create multiple search-optimized variations from it.
I scan these images and get several texts, which sometimes turn out to be very different, but each of them contains a lot of useful information (information that did not parse in one image was parsed in another).
Thanks to the 'bicycle' I wrote, they can be glued together.
I think there are many tools for this, which I unfortunately did not find in the search engine (
Please tell me any tools for Linux that can handle this.