Rotate pages

[FlyinPancake]

I'd like to be able to rotate a PDF document. Currently, I don't see any way to achieve this using other rust crates, and this seemed the best place to look.

My example workflow:

• load a pdf file into memory
• rotate it 180 degrees
• save it

[Junfeng Liu]

Try add a transform to the page content.

[Murilo Lacerda]

Is there a example?