There are three versions of vector images in this project.

* ai - Adobe Illustrator format
* pdf - Adobe Reader format
* svg - Scalable Vector Graphics

To submit modifications for the logo

1. Fork or Download the git repository from GitHub
2. Pick a format you are comfortable working in
3. Make your modifications
4. Make sure to reexport the SVG
5. Send a pull request (if you forked) or post a new message to the Redmine Logo thread on the forum

http://www.redmine.org/boards/1/topics/1183

Thank you for contributing.