gImageReader 3.1 (May 1 2015):
- Add option to draw whitespace
- Allow searching and replacing only in selected portion of output text
- Add "preserve paragraphs" postprocessing option
- Allow to open files via drag and drop
- Improve rendering of certain PDF files with the Qt interface
- Fix scanning broken with certain scanners under Windows
- Support automatic spelling dictionary installation under Windows
- Allow saving scans in other formats than png
- Handful of bugs fixed
- Full details in commit log: https://github.com/manisandro/gImageReader/commits/master