Iconographer is a fully-featured icon editor. It allows you to both change the icons of items and to edit the icon resources used by various programs. Iconographer has been created from the ground up to deal with many icon formats, including: classic Mac OS (8-bit icons only), Mac OS 8.5+ (32-bit icons with 8-bit icons), Mac OS X (128 x 128 icons in .icns files), Windows and Windows XP (.ico files), and Mac OS X Server (48 x 48 icons in .tiff files).
WHAT'S NEW
Version 2.5 adds the following:
Support for importing and exporting of individual icon members and entire icons to TIFF, PNG, Photoshop and other graphics formats
Support for smooth and blocky scaling
Interface now uses Quartz font anti-aliasing
Holding down option when using the "Complete Icon" command now regenerates all members
Fixed bug that caused color artifacts when using the "Copy Icon and Mask" command
10.2.x compatibility fixes
Performance and stability improvements