Can I save several JPG files as metadata using XMP in CS4?

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5 total messages Started by Luis_Morcillo Tue, 24 Mar 2009 08:54

#240

Author: Luis_Morcillo
Date: Tue, 24 Mar 2009 08:54

7 lines
1235 bytes

Hello again. I'd like to save different thumbnails of the same file as metadata.

My current plugin saves some info about the layers (like "sessions"): enabled/disabled, opacity, text (if it is a text layer), etc. Thus, when I open a PSD template and I want to use only some layers and change some texts of text layers, I read the "sessions" metadata, select the one I need and start working.

Now I'd like to add another feature: a 200x200px thumbnail for each session, si I can preview what the PSD will look like when I load a session. Is it possible to store JPG (or PNG, or anything) files as a PSD metadata?

Thank you very much in advance :)

Re: Can I save several JPG files as metadata using XMP in CS4?

#43

Author: Luis_Morcillo
Date: Tue, 31 Mar 2009 09:31

1 lines
640 bytes

No way then?

Re: Can I save several JPG files as metadata using XMP in CS4?

#44

Author: xbytor
Date: Tue, 31 Mar 2009 10:34

9 lines
1104 bytes

In theory, you can put whatever you want in the XMP.
In practice, you would have to encode the thumbnails for CDATA blocks and your 
applications/scripts would have to have prior knowledge that about the names of 
these XMP fields and their format.

If it's only your plugin that's reading and writing these thumbnails, you may be 
able to do all of this.

-X

Re: Can I save several JPG files as metadata using XMP in CS4?

#75

Author: Luis_Morcillo
Date: Fri, 03 Apr 2009 07:09

1 lines
810 bytes

Thanks xbytor, but I've searched in XMP Specification and Photoshop CS4 Scripting Guide and can't find anything about CDATA encoding. Is there any document I can read to try that? Thanks beforehand :)

Re: Can I save several JPG files as metadata using XMP in CS4?

#80

Author: xbytor
Date: Fri, 03 Apr 2009 15:36

6 lines
1140 bytes

Luis_Morcillo@adobeforums.com wrote:
> Thanks xbytor, but I've searched in XMP Specification and Photoshop CS4 Scripting Guide and can't find anything about CDATA encoding. Is there any document I can read to try that? Thanks beforehand :)

CDATA is just a way of encoding arbitrary binary data (like a thumbnail) in an 
XML document. You can find specifics in any basic XML reference guide online or 
in hardcopy.

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