PDKKIT Issue on Ubuntu


I have used pdfkit to convert some of my web pages to pdf file.
On my development machine (Mac OSX 10.5.8), the pdf files looks perfect.
But on the production server (Ubuntu 9), the pdf files is not created
properly. The content is very small in size. I have forced the page_size
as well, but was fruitless.

Does anyone know how to fix this?