IF the image is in GIFformat, I recommend converting it to PNG because they're similar, but PNGs will usually be smaller in file size.
如果图像是GIF格式的，建议先把它转换成PNG格式，他们是类似的，但是PNG格式文件比较小。
2
Note that the ringtone should be in RTX format (a XML file that contains the ringtone name and the definition of the ringtone) while the image should be in JPEG, GIF or PNG format.
The resulting image is shown in Figure 3. I used the JPG format, but the Dot tool supports other image formats as well, including GIF, PNG, and postscript.