Long ago I used a tiny program to stitch images to one (either vertical or horizontal) image for later use in Reaktor or Synthedit for knob/fader imaging.
I can't find it anymore neither in the webz nor on my HDs. It was pretty simple and easy, no unnecessary bling-bling or functions, just plain doing the job.
Any clue, folks? I'm sure it has been posted/referenced here years ago.