Resize images so that they match the size in the document

[jhubert]

Currently, the scaled size of the image is ignored when parsing images out of a document. This causes the resulting HTML to have massive images and not match up with the style of the original document..

The (deprecated) python doc2html library did a nice job of this by resizing the images.

[jhubert]

I'm going to take a pass at this functionality as soon as I find the time.

[zdavatz]

ok, thanks!