Gloria, 

This is a tricky one.  If you change the default setting for the collection be 
read for admin, then all the bitstreams loaded into that collection will get 
that permission, not just the tif files, and I don't think this is what you 
want, right?  

Do some of your items contain all 3 kinds of files ( tif, jpeg, and text)?   

If the case is that you have :

Items with just text
Items with just jpeg
Items with just tif

Then you could do two loads, one with the tif files and the default setting set 
to Read for admins,
And another load with rights set for default read for anonymous for the rest of 
the items.

-Jose



-----Original Message-----
From: Gloria Sena [mailto:s...@wrlc.org] 
Sent: Tuesday, October 25, 2011 1:16 PM
To: dspace-tech@lists.sourceforge.net
Subject: Re: [Dspace-tech] restrict access to tiff bitstreams only

how do you restrict access to bitstreams without having to go modify 
authorization item by item.
I am importing an entire collection of 4000+ items to another dspace instance. 
each item can potentially include master files in tif format, thumbnails in 
jpeg format, and text format.  When I perform itemimport via command line, the 
resource policies created by default allows anonymous users read permissions 
for all bitstreams.
I do not want read permission for master files in tif format for anonymous 
users , only for the collection admin group.  

thanks!
Gloria
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