Hello.
I'm unable to convert
this PDF file to mobi (or any other ebook format).
Tried calibre, underlying ebook-convert, online converters - they skip all the text. I can see the text in PDF readers and the PDF passes pdf validation tools (pdfinfo), but opening in PDF editors like Libre Office shows cover and 1300 empty pages. pdftotext also returns nothing.
Any idea how to convert this file into a ebook?