From Premedia Software:
FixMyPrintFile is a cloud-based preflight and file optimization solution designed for small and mid-size printers, publishers, and graphic designers. FixMyPrintFile provides high-end file correction, but without the high ownership costs of a premium in-house solution. Upload any PDF, EPS, TIFF, JPEG, or PS file and receive back PDF/X file that is optimized for your printing condition using industry standard settings. You'll also receive back a visual PDF report and html log which explain what preflight checks were found and what was corrected.
FixMyPrintFile uses a flexible pay-as-you-go business model so you only pay for what you use. This drastically reduces your out-of-pocket expenses because you don't need to purchase a dedicated server, buy an expensive support contract, or continually invest in software upgrades. You only pay for what you use.