How to generate 300 DPI image from canvas using Imagesnapshot

Hi all,
I want to generate image from my canvas.
I tried using bitmapdata and imagesnapshot.
Bitmapdata has no property called DPI.
Imagesnapshot allows to set DPI but it is not generating 300 dpi image.
Any idea?

You are in the Using iPhone forum. I will ask the hosts to move this to the iPad forum. However, I'm not aware of any setting change you can make to the cameras in the iPad or iPhone.

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