The following may be of interest to Eagle users. The article below is a cut
and paste from 'Circuit Cellar (Sept2011)'
The 'free-ness' comes at a price of needing an internet connection but the
functionality may out way the downsides.
I suggest reading the 'system requirements' in the 'Reference guide' as well
as the brochure pdf which gives a quick overview of its abilities.
DFM Now! enables PCB designers and engineers to verify that their Gerber and
files are ready for PCB manufacturing.
Featuring an intelligent GUI for improved speed, usability, and reliability,
enables PCB manufacturers to instantly reach PCB designers and engineers
before they send their Gerber/drill files out for manufacturing. It provides
users with the ability to easily submit PCB designs for quotes and order
It also boosts CAM productivity by receiving intelligent, “ready-to-go”
that has already passed all DFM checks and meets specific manufacturing
DFM Now! is completely independent and not aligned with any one
so there is no hidden push to force designers to use a specific
manufacturer. The software was designed to be an openmarket
system for the PCB industry, so any company can advertise inside DFM Now!
free of charge.
DFM Now! is available for free download at www.dfmnow.com.