With stock version of qt4 wkthmltopdf lacks a lot of features, including:
* Running without an X11 server
* Printing more then one HTML document into a PDF file
* Adding a document outline to the PDF file
* Adding headers and footers to the PDF file
* Generating a table of contents
* Adding links in the generated PDF file
* Printing using the screen media-type
* Disabling the smart shrink feature of webkit
