Convert PDB from Imperial to Metric units

HI All,

is there any easy way to convert imperail PDBs (Symbols and Cells with inch grid) to metric?

Background: for e.g. CPUs I get the PDB often from the vendor, unfortunately in inch, as our complete library use metric  I have to create the whole PDB by myself with metric grid. I'm not able to use the vendor data. I talk about parts with a lot more than 1000 pins.

Regards Tobi