how to use gd library in cakephp?

I am new to cakephp. In my project i want to do manipulations with
image, for that i want to use gd library.how to use gd library in my
controller?
Can i directly use methods in that gd library?or I have to download
the gd library? please explain me

--
Our newest site for the community: CakePHP Video Tutorials http://tv.cakephp.org
Check out the new CakePHP Questions site http://ask.cakephp.org and help others with their CakePHP related questions.

To unsubscribe from this group, send email to
cake-php+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/cake-php