this will be fixed with the upcoming qpdf 0.4.0 beta1. and yes the freetype dll coming with qpdfview is a bit older than the one from dave.
welcome to DLL hell
- a reason I tend to use static linking - larger executables but no clashes of dll versions
This was a concern I had with not to continue static linking it into Mozilla. However, as long as the newer dll works with the older apps it is not unexpected that an app would require the newer dll. The windows DLL hell was that newer versions of their DLLs such as the mfc ones would break compatibility and not work with older apps so that you had to have multiple versions lying around.