Is it possible to extend the image in left side margin on verso page and right side margin on recto page automatically? Please see the attached example PDF snap pages.

I have tried with float:outside/inside, but it's not suit for this requirement.

1. extended_Recto.png‎ 144.2 kB
2. extended_verso.png‎ 64.4 kB

You could use the margin-outside property and specify negative margin, perhaps?

Its works, Thanks Mike.