Sumatra PDF might be a bit more popular than PDF to Text. We know about 1 link to it since March 2021 and only 1 link to PDF to Text. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
If you still want to proceed, I suggest you first manually convert each pdf to a .txt file with https://pdftotext.com/. I tried working with the actual monster manual pdf and it's a big mess. Although it looks pretty in a pdf viewer, the textual representation is highly irregular. The .txt version I got from that website is nice. Source: over 2 years ago
You can use your browser for both, there are extensions(FireFox - PDF & EPUB/Chrome - PDF& EPUB) for that. In case, you want you use a separate software for them, I suggest SumatraPDF--it handles both PDFs and .EPUB files. Source: over 1 year ago
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