Requires Pixelpost 1.5
Resizes uploaded photo on fly. All photos after uploading are resized to a predefined size set in the Options >> Thumbnails in the admin panel. The special thing about this addon is that it preserives the EXIF data. (Thanks to Romain for the autoresize hack for 1.4.x)
in this version you can edit the admin_autoresize.php to keep the fullsize image or not. default it keeps the fullsize as fullsize_imagename.jpg
check out the line that reads:
$keepfullsizeimage = TRUE; // change it FALSE if you don't want to keep the fullsize image.