Also only a PDF...
http://www.conservatives.com/Policy/Manifesto.aspx
Although interestingly, they provide it in two versions, one with high-res graphics (77MB) and one with low res (3MB).
Unfortunately, some graphics that should be vector graphics are bit map graphics, and are over-compressed in the low-res version, making them almost unreadable.
A rather disappointing showing. The Labour Party PDF was only 2.3MB, and all its graphics were perfectly legible. Although it did really only use them for full page chapter headings.