What’s the Best Way to Split Text from Scientific PDFs into Paragraphs?

Hey folks! I'm in the process of handling scientific articles, particularly those in the IEEE format, and I'm trying to figure out the best way to split the text I've extracted into coherent paragraphs. I've tried some straightforward methods using line breaks, but they often don't work well because PDFs typically have unexpected line breaks even within paragraphs and the overall paragraph structure is inconsistent. I'm on the lookout for better methods or tools—preferably free ones—that can help me reliably segment this text. Any tips or recommendations on libraries or approaches would be super helpful!