How can I upload image with resize

Dear All

I need to provide a way to let someone to upload imge to the server.
I need 3 tasks:
1) Upload and resize an image 500x500px (large)
2) Upload the same image with the size 100x100px (small)
3) The both image has to take the name [[*id]]-large.jpg and [[*id]]-small.jpg.

Is there a add-on whihc make resize and rename?

Many thank for your help

If you want to have two different files, they would need to be sized manually in advance.

The other option would be to use phpthumbof (http://rtfm.modx.com/display/ADDON/phpThumbOf) and generate them dynamically. I find this easier on clients as they just upload the image and it does the rest for you.