[Zope] Batch-adding images with extra attribs

Hi there I have a lot of images that I must upload into Zope. I can probably use FTP, but I have another problem. I add a copyright attribute to each image. It would be great if I can tell Zope, upload all images in directory c:\foo and give them a copyright attribute of bar. I have access to the server on which Zope is running, so it will probably be the easiest to write an external Python method to do the uploading from the server's file system. My question is, how do I upload an image directly from disk into Zope? Thanks in advance. Etienne