MobileRead Forums - View Single Post - Improving wordwrap for Calibre and new PDF engine

kovidgoyal · 02-24-2010, 10:58 AM

It uses a custom pdf to xml engine based on poppler (which is what pdftohtml uses as well). It deals with line wrapping automatically and fixes various shortcoming of pdftohtml like support for the Table of Contents and rotated images.

I'm currently too busy to work on this, so if you want to, be my guest. The code is in calibre/ebooks/pdf

You can invoke it like this

Code:

ebook-convert file.pdf .epub -vvvv --debug-pipeline p --new-pdf-engine

It will error out, but before erroring out, it will create two files in p/input

index.html and index.xml

The XML file is generated by the new engine and the html file is generated from the XML by the code in calibre.ebooks.pdf.reflow

Currently the engine is pretty much done, the code in reflow needs to be completed.

02-24-2010, 10:58 AM	#2
kovidgoyal creator of calibre Posts: 45,423 Karma: 27757236 Join Date: Oct 2006 Location: Mumbai, India Device: Various	It uses a custom pdf to xml engine based on poppler (which is what pdftohtml uses as well). It deals with line wrapping automatically and fixes various shortcoming of pdftohtml like support for the Table of Contents and rotated images. I'm currently too busy to work on this, so if you want to, be my guest. The code is in calibre/ebooks/pdf You can invoke it like this Code: ebook-convert file.pdf .epub -vvvv --debug-pipeline p --new-pdf-engine It will error out, but before erroring out, it will create two files in p/input index.html and index.xml The XML file is generated by the new engine and the html file is generated from the XML by the code in calibre.ebooks.pdf.reflow Currently the engine is pretty much done, the code in reflow needs to be completed.