Screen shots of what?
I don't know what parts of the conversion attempts you want shots of. If I knew what you thought they might show, I might be able to figure that out.
If I try to run ocr from uncustomized k2pdfopt, it can't find the environment variable TESSDATA_PREFIX, and can't use Tesseract.
If I run from customized k2pdfopt_copy or k2pdfopt_dx, it can. k2pdf_copy uses -mode copy to avoid unnecessary compression. k2pdf_dx uses -mode copy -dev dx.
I have tried -ocr -ocrlang rus in k2pdfopt_copy. I may get a message stating:
Initializing OCR for 2 threads ..
Tesseract Open Source OCR Engine v3.05.00 [CUBE+] (lang=rus)
Reading 443 pages from
... but get no ocr at the end.
I am currently comparing my results with K2 with results with Elucidate, but in the long run, I can't combine K2 with Elucidate.