Photoshop provides all the necessary tools to proceed to a symmetry. However it can turn out boring. With Quick Mirror, it will take you 2 seconds!

To be able to work, a free area ( a zone with a sole colour) has to be next or surround the basic part. See illustration below:

And here's the result:

Here's another example: (below) Note that it works also with a transparent zone. Note also how the big free spaces are processed.

Before		After

• To proceed quickly, just before making a symmetry, i suggest three methods:
• Increase canvas size.
• Select the zone you wish, and do a layer via copy (Photoshop: Ctrl + J)
• Select the zone you wish, invert the selection (Photoshop: Shift+Ctrl+I) then erase (Suppr). Do not forget to deselect (Photoshop: Ctrl +D).

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	Javascript, Please!