Reducing the size of image (in KBs)

M using UIImagePNGRepresentation to create a png image from a pdf file. I want to reduce the size of the image c开发者_Go百科reated.

how can it be done??

Saving as a JPG with 90% quality will drastically reduce the size and the image will still look OK.
Because of the iPhone's high DPI display, it wouldn't be noticeable at all!

you can load the png into a UIImage and then resize it.

this coves how to resize it.

http://vocaro.com/trevor/blog/2009/10/12/resize-a-uiimage-the-right-way/