Calibre and online sites can convert from PDF to Epub usually lose most of the format. I tried PDFElements, with similarly poor results.
Is there any service/app that actually works and converts a PDF to Epub in a way that resembles closely the original?
Pdf is usually just an image with Metadata so that you can search and copy text, basically the coordinates of every letters and words in the image.
The formatting is only visible in the image so it’s very hard to recover.
The goal of pdf is to create a file that will look exactly the same every times but it is not ment to be edited or modified in anyway.