🚀 go-pugleaf

Does anyone have recommendations on the best program to use for editing
black and white scans?  I'm involved in a project to scan and edit some
early music publications and want to get the best software for the job.
We'll need to be able to easily delete pixels (to clean the scan), edit
pixels (to clean up notes, etc.), add lines (to extend barlines, etc.),
stretch bitmaps (to extend scanned slurs for example), and, possibly,
rotate bitmaps (to align bitmaps from two different scans).  Other features
like being able to access multiple bitmaps at the same time, smoothing of
pixel images, etc. are also of intereset.

Note that I'm ONLY interested in B&W (not color, not greyscale) performance.

The two likely programs I've looked at are SuperPaint and Canvas.  SuperPaint
allows you to enter bitmap editing mode, but it seems slow and lacks editing
freatures.  Canvas seems much better, but I've not figured out if it can
stretch bitmaps or rotate at a finer control than 1degree intervals.

TIA.

---Paul Johnson