iMarker

It can mark text in images by highlighting the important parts using the mouse pointer, similar to manually color marking. Images from websites and screenshots can be quickly pasted and edited. People possessing lots of information containing lots of text can win time and space by indicating the important parts. For instance use it as an archiving tool: old paper documents could be scanned after which iMarker can be used to indicate the important parts giving you a nice electronic overview of each document.

Limitations:

Some features disabled