A beautiful demo is worth a thousand words:
What is pdf2htmlEX?
pdf2htmlEX renders PDF files in HTML, utilizing modern Web technologies, aims to provide an accuracy rendering, while keeping optimized for Web display.
pdf2htmlEX is best for text-based PDF files, for example scientific papers with complicated formulas and figures. Text, fonts and formats are natively perserved in HTML such that you can still search and copy.
Check out dependencies and more information at the project page.
Mailing List firstname.lastname@example.org
More info at coolwanglu/pdf2htmlEX@github.