Tesseract - Tesseract is an optical character recognition engine for various operating systems
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
GOCR - GOCR homepage. GOCR is an OCR (Optical Character Recognition) program, developed under the GNU Public License.
Wondershare PDFelement - All-in-one PDF editor
TextGrabber - Office & Productivity
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.