[Metadatalibrarians] Editing embedded metadata in a tif

[Ingrid Schneider]

Hello all!

I'm creating metadata in CONTENTdm for a collaborative project we're 
taking part in. I'd like to preserve this metadata for future use in 
internal projects, and my original thinking was that I could make it a 
part of the metadata embedded in our archival tifs. The embedded 
metadata appears to have been built by Photoshop with human input on the 
descriptive metadata and the file uses Adobe XMP Core, Exif, XAP, Iptc 
4xmp Core, CRS, TIFF, and DC. It's coded in RDF.

I only want to modify the DC, but when I make and save changes to the DC 
it messes the picture up. It won't open in Photoshop at all, I get an 
error message that says it won't open because an "unexpected end-of-file 
was encountered. I can open it in the Windows Office Picture Manager but 
the image is distorted to the point where you can't tell what it is.

Does anyone know why this is happening, and if/how I can successfully 
modify the metadata in the archival tif?
Thank you,
Ingrid Schneider
-- 
Ingrid Schneider, M.L.S.
Metadata & Authority Control Librarian
New Mexico State University Library
PO Box 30006 / MSC 3475
Las Cruces, NM 88003
Phone: 575-646-4707