ByteScout Scan SDK{free open source (FreeBSD license) to work with TWAIN devices to acquire images from .NET applications}
Features
- comes with UI dialogs to provide ready to use implementations;
- async mode support;
- can be set to automatically save images into files;
- can setup settings for output image formats: BMP, JPG, PNG, TIF image formats;
- TWAIN and WIA devices are supported;
Official page:
http://bytescout.com/products/developer/scansdk/bytescoutscansdk.htmlLicenseFreeBSD - free for both commercial and non commercial use