Disable [Shrink to Printable Area] in Adobe Reader 9, iprintScaling, bShrinkToFit

Add these to registry keys to current user to set page scaling to none:

reg add "HKCU\Software\Adobe\Acrobat Reader\9.0\AVGeneral" /v iprintScaling /t REG_DWORD /d 1 /f
reg add "HKCU\Software\Adobe\Acrobat Reader\9.0\Originals" /v bShrinkToFit /t REG_DWORD /d 0 /f