Questions and postings pertaining to the development of ImageMagick, feature enhancements, and ImageMagick internals. ImageMagick source code and algorithms are discussed here. Usage questions which are too arcane for the normal user list should also be posted here.
Adjust XX from nominal 72 dpi to what you want in terms of size of the input pdf. Adjust YY for the size of the half transparent white border at the bottom.