How to copy/paste when working with non-latin pdf text ie Ukrainian (Cyrillic), Arabic (Abjad) in order to translate, on a Mac.

I am trying to translate research papers from languages with non-latin text (Ukrainian, Russian, Arabic, Japanese) to English. Is there a way to copy and paste non-latin text on a Mac correctly preserving the non-latin characters? For example, I have a scanned PDF research paper which I open in Adobe > Edit > highlight and copy the Ukrainian text, but when I CMD+V into Google translate, it gets pasted as nonsense (also tried CMD + SHIFT + V, special paste does not work either). Similarly there is Microsoft Translate tool, but again when I attempt to use copy/paste shortcut keys to paste Ukrainian text from the PDF into a Word doc, it's pasted as nonsense. Opening the Ukrainian pdf in Word also doesn't work because it opens as a scanned file (with images) which Microsoft Translate tool cannot translate. Google translate Docs does not read scanned papers. I have the Ukrainian keyboard loaded and know how to switch the input, but still no luck with the shortcut copy paste commands. How do Mac users with non-latin languages copy and paste??? Need to be able to translate sections of research papers that are in pdf format from various languages to English. Any suggestions welcome!