Converting images from one format to another

[findmymate]

On my matchmaking site http://www.findmymate.com I have members uploading their pictures in different formats - gif, tiff, jpeg, pjpeg, macbinary etc. Some browsers are not able to read some of these files and there is a compatibility issue. Is there a php routine that will take whatever file is given and convert it to gif or jpeg which seem to be quite compatible with most browsers. Thanks for any help.

[SneakyDave]

I don't believe PHP will do this, but there is some software that you MAY be able to install, such as image magick (or something like that), that will perform some image manipulation and conversions.

[Jakob Borg]

If you are running your website on an *NIX-machine, you could contact your administrator. He/she could give you access via the php-function 'exec' to a converter like 'convert'.