If you want to change the format of a picture or overrule FrontPage's rule of converting 256-colour (and less) images to Gifs and greater to Jpegs, right click the picture to select it and choose Picture Properties from the popup menu. Go to the General tab.

To convert to Gif format, click the gif radio button and check Transparent if you want the gif to have a transparent colour, and interlaced if you want the gif to load more quickly.

To convert to jpeg format, click the jpeg radio button, and choose the percentage of the original file size to which you would like to compress the image.

Note: The lower the number the lower the quality, the default optimal setting is 75.

Increase the number of 'Progressive Passes' box if you want the jpeg to seem to appear more quickly--which will be at the cost of more downloading overall. The default is four passes.