NAPS2 - Scan documents to PDF and more
www.naps2.com
NAPS2 is free scanner software made easy. Scan to PDF, edit your documents, and use advanced features like OCR. Available on Windows, Mac, and Linux.

NAPS2 (Not Another PDF Scanner.) Free versions for Linux, Windows, and Mac are available for download. Simple interface but fully featured, NAPS2 is much better than the overly bloated proprietary software that comes with most document scanners. Compatible with many devices.