Edit a pre-existing image

It is possible to edit a pre-existing image record, both the metadata (eg, title, url) and the attachment (aka, the file). There is a restriction, however. The file name must be the same as the original. If you encounter an error message of the type "file name cannot change from…", it is because you uploaded a file with a different name. Rename the file being uploaded to that of the pre-existing image record.