NAPS2 SDK is a free and open source scanning library for C#/.NET. Scan with devices from Canon, Brother, HP, Epson, Fujitsu, and more. Then save to PDF, TIFF, JPEG, or PNG. Features: WIA, TWAIN, SANE, and ESCL drivers; PDF import/export and OCR; Share scanners on the local network; Modern .NET 6+ API; Windows, Mac, and Linux support