I tried using several apps/online to convert PDF file to HTML, for testing purposes. However when i inspect file after conversion, I see something like this:

<div class="t m0 x2 h5 y4 ff1 fs3 fc1 sc0 ls0 ws0">Investment det<span class="_ _0">. 
</span>ails</div>

As you can see Investment det and ails have been separated, and there sometimes can be even more bizarre symbols between words like squares etc. (umNer)

Does this mean that to create PDF some kind of encoder was used ? Or was the code that created PDF poorly written ? Perhaps even someone can give me any suggestions how to approach this situation ? Or is this a converter issue, and I have to keep on looking for better converter ?

As I know react-pdf was used to create PDF file. At least that's what file itself says.