[dimsumthinking]

First of all - I love calibre and appreciate all of the work that's gone into it.

I write eBooks in epub. My books are valid epub (i.e. they pass the W3C conformance) but have noticed recently that when I use calibre to convert these to pdfs some of the underlying xhtml files are rendered correctly and some are rendered so that the font of the headings and body text are reduced.

Is this an obvious setting in the PDF that I'm missing or is the pdf making a file by file conversion and a calculation is influencing the font size. When I view the xhtml files in a browser these difference aren't apparent.

Sorry if this question is not clearly stated.

Any thoughts would be appreciated,

Daniel