一个SVG编辑工具：WebDraw
可以用来编辑纯SVG。
http://www.jasc.com/products/webdraw/

Discover the power and flexibility of the Web's hottest new graphics format, Scalable Vector Graphics (SVG), with Jasc WebDraw. A complete SVG authoring solution, WebDraw delivers a robust set of graphics design and source code editing tools for faster, more flexible SVG design and development.

With WebDraw, you can:

Use standard design and layout tools to easily create high-quality graphics and animations

Explore limitless animation options with the powerful object-based timeline

Add sophisticated gradients, patterns and filter effects for more visually appealing graphics

Edit SVG source code directly for more flexibility and control of your files

Automatically validate source code changes to ensure code accuracy

Get instant visual feedback of source code changes

Import, edit and optimize SVG files created by other programs