Image Resizer - the IIS/ASP.NET module for everyone

Resize, watermark, crop, rotate and filter from the image URL.
Usable from javascript, css, html, php, ruby, python, asp, asp.net, anything!

DefaultEncoder

Installed by default.

Provides adjustable jpeg encoding, 32-bit PNG encoding with transparency support, and standard .NET GIF encoding (which is quite lousy, and does not support transparency). Get the PrettyGifs plugin for high-quality GIF encoding.

Jpeg quality defaults to 90, which is very good balance. You can override the setting by adding &quality=0-100

You can choose the file format with &format=png|jpg|gif