Gibberish when copy pasting

I don’t know where to post this. But I’m trying to copy paste from the pdf files in this website. But often it gets gibberish and spelling mistakes, I tried all sorts of OCR but it still doesn’t work. I’ve heard it’s to do with the font or something technical like that.

In short, is it possible to get a clean copy paste of this? Would anyone like to try? I have downloaded all the files (yes there’s a lot!) happy to share it, it’s in one big pdf (yes it took me too damn long hahaha). Let me know? And if it’s not the right place to share this question, please message me the group where I can find the answers.

https://collections.uwindsor.ca/chekhov/1935

Thank you so much :)