[Zope] PIL and Filesystem

[brocken22@gmx.de]

Hello,
I'm using PIL to convert bmp and tiff-images to jpeg.
After conversion they should be added to Zope.
My problem is that for conversion, I think, I have to
safe them on the filesystem.
Zope's security policy doesn't allow me to delete
files with an external method.
Am I forced to do a cron-job?
Isn't it possible to change the format in another way??
Thanks very much!!
I've heard that's easier to stream the images and convert them on the fly!
Any hint??
 Thanks.

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