great prog & it's free & it works!!!!
jpegs are converted to tiffs on import
to flip use the mirror function but this works only in vertical direction so do a 90/3x90 deg turn afterwards,
used the tool/inspector for precise changes to an object, best is have the inspector open all the time!
it seems selecting the active layer is not working, everything was on 1 layer then select/cut/disable all unused layers then paste into the only active layer placed the object to where i wanted it (click onto the eye to make the layer invisible, click the pen to block the edit)
there are spec tool for mech drawings added
under 'save as' you can select from 5 ways to export, svg export is missing!! to export to a jpeg: make a screen shot of the drawing,
the tool bars are floating - you can put them aside
the tools & icons are reasonable easy to understand thus a manual may not be of importance