I’m trying to print PCB layout from KiCad after routing and I need to mirror the top copper layer.
For some reason it prints all track very narrow (see attachment). Tracks have proper width if printed without mirroring.
Several copies - not as a direct feature in KiCad but there are a couple of workarounds. You can import multiple projects into one layout in ‘stand alone mode’. Alternatively there is at least one action script for duplicating layouts. Using the PDF output should allow you to print multiple copies per sheet depending on your printer driver.
Alternatively have a look for panelisation in the forum. There have been several posts about it.