xraster is Freeware program for Windows developed by data&vision GmbH
Graphicutility to exclude moire-effects from pictures and simultaneously keeping the attribute of your images. Unlike this Freeware-Edition, the Standard-Edition let you salvage all accomplished actions as filters, which you can use representing a batchrun through painting libaries. This program is based on a mathematic algorithm from Dr. A. Heesemann.
pro & contra:
+ pptimized pictures without qualitylosses + automation with filters and batchruns (commercial-edition lone) + plain Use + expenditure
- slight period of vocational adjustment - statistics&vision is currently the absolute distributor