дръпни си ACDSee, крак за него ще намериш в Astalavista.com и ще можеш да правиш прости операции с имиджите си, вкл. промяна на размера.

ето ти кратко описание на ACDSee:
ACDSee Classic is a quick image viewer for displaying high-resolution digital images. ACDSee Classic's browser allows you to view thumbnails in more than 30 image formats and create separately stored descriptions for images. ACDSee Classic also has file conversion abilities and support for cropping and lossless JPEG rotation.

IMAGINE...