Could anybody tell me what the mime type for .indd files are?
Am trying to allow indesign files into our DMS but I need the mimetype, can only find it associted with "application/octet-stream" but this mimetype allows things like .exe files etc
Is there is specific mime type for indesign files and other adobe products file extensions like for pdf = "application/pdf"
Indeed, hastingsr is correct.
There is no official MIME type for InDesign -- it does not appear in the IANA's listing: http://www.iana.org/assignments/media-types/application/index.html.
But if you consult the XMP metadata that InDesign writes, it identifies itself in the Dublin Core metadata as application/x-indesign:
application/x- types are not covered in a registry, and are basically a free-for-all, but the IETF has realized that's not the best move, and that state is changing. See http://tools.ietf.org/id/draft-ietf-appsawg-xdash (Deprecating Use of the "X-" Prefix in Application Protocols. P. Saint-Andre, D. Crocker, and M. Nottingham. October 24, 2011).
More than you wanted to know? :)