How can I make the raspbian desktop look like I am viewing in front of a mirror? (basically backwards) I've already looked in the documentation for config.txt (here is a link) and tried to use rotate, but it seems that it rotates the hdmi, not the actual desktop. (but I don't know, because I use RDP) Can somebody please help me figure this out?
The option you are looking for is
value 0x10000 should perform a horizontal flip, 0x20000 a vertical one.