pngStitch is a simple application that used to stitches together png images vertically (like TrentStitch). It can easily used in making knobs for vst plug-in. It tested it with 32 bit images though (i.e. 8 bit alpha and 24 bit color).With this application image selection is retained when you click down or up and include windows resizable option.
Full Specifications
What's new in version 1.01
General
ReleaseMay 2, 2013
Date AddedMay 2, 2013
Version1.01
Operating Systems
Operating SystemsWindows 2003, Windows 2000, Windows Vista, Windows, Windows 7, Windows XP