4
Acrobat Professional features a PDF Optimizer tool, as reviewed here.
This tool analyzes the space usage within a PDF file in terms of image size, fonts, ...
Are there more lightweight and/or affordable tools that do the same for existing PDF files?
Neither Ghostscript nor PDFTK are able to analayze space usage for different categories of page objects and resources. An answer like the above would be completely useless even if Ghostscript or PDFTK *could indeed* do what's required ...unless it also gave a detailed commandline which would achieve what Bernard asked for. – Kurt Pfeifle – 2011-06-18T19:16:26.510
Since there doesn't seem to be any tools for this around, they could be used as stepping stones to build such a tool. – Aaron Digulla – 2011-06-20T07:29:09.163
I've rewritten my answer to make it more obvious that one link goes to a HOWTO which might help. – Aaron Digulla – 2011-06-20T07:31:16.493