shrinking images on displaying

[yagoo]

I've tried to use intermediate images but: 1) GD gives me the typical memory allocation problems and I can't modify php.ini 2) I want that every user in my site can upload images... so intermediate images won't work for me.

I've been using the search these last 2 days for an alternative, but didn't find what I have in mind (maybe I didn't use the appropiate word!). What I need is to display the image shrunk if its width (not height) is over 800px. Then, if an image have e.g. a resolution of 1000x500, it would show the same image but with img params: width=800 and height=400 (in proportion). I don't know how to modify displayimage.php to achieve this.

Thanks for your support, and sorry for my english.

[Joachim Müller]

Coppermine should do exactly what you're up to if you set "Create intermediate pictures" to "no" in Coppermine's config.