RE: How can TDMRep be used in PDF?

Hi Vincent,

 

XMP is a standard used for PDF and for photos or videos.

I’m from IPTC, the maker of the widely used photo metadata standard for
images, and we have a property for embedding a rights expression into XMP:

*	The Embedded Encoded Rights Expression property, see
https://www.iptc.org/std/photometadata/specification/IPTC-PhotoMetadata#emb
edded-encoded-rights-expression
*	It has a structure of three properties – see
https://www.iptc.org/std/photometadata/specification/IPTC-PhotoMetadata#emb
edded-encoded-rights-expression-eere-structure

*	Encoded Rights Expression: this is an XML element taking text
values and in this case you can make a TDMRep policy a single string and
put it into this property.
*	Encoding Type: the TDMRep policy uses JSON-LD and therefore the
value of this property must be “application/ld-json”
*	Rights Expression Language ID: for a TDMRep policy you should use
http://www.w3.org/ns/tdmrep

 

This metadata property/structure can be embedded using the quite popular
ExifTool <https://exiftool.org/> : a command line tool available on
Windows, Mac and Linux. If you are interested I can share a small Python
script doing the embedding job on many (PDF) files.

 

Best,

Michael

 

=============================================================

Gesendet von / sent by:

Michael W. Steidl

 <http://www.linkedin.com/in/michaelwsteidl>
www.linkedin.com/in/michaelwsteidl 

co-Lead of  <https://iptc.org/about-iptc/work-structure/#pmd> IPTC Photo
Metadata Working Group

Email: mwsteidl@ <http://www.newsit.biz/> newsit.biz 

1180 Wien/Vienna – Österreich/Austria

 

From: Lizzi, Vincent <Vincent.Lizzi@taylorandfrancis.com> 
Sent: Thursday, March 9, 2023 3:57 PM
To: public-tdmrep@w3.org
Subject: How can TDMRep be used in PDF?

 

Dear TDMRep community,

 

There was a recent notice from W3C that this community group might
automatically close soon, so this seems like the time to get a question in
for this group. I work for a publisher that distributes content in multiple
formats including web pages, EPub, and PDF. The PDF format is still very
popular among our readers. The PDF files that we publish contain embedded
XMP metadata that provides the title, authors, digital object identifier
(DOI), version (using NISO JAV terminology), copyright, and license
information. In considering a possibility of someday having to implement
TDMRep for our content, the TDMRep Final Community Report shows how TDMRep
metadata can be encoded in HTML meta tags which could be used in web pages
and EPub files. It is unclear as to whether, or how, TDMRep metadata can be
encoded in RDF XML to be included in the XMP metadata of a PDF file. Is
this use case far outside of the intended scope of TDMRep? If this is a
reasonable use of TDMRep, can you provide any guidance on how to encode
TDMRep metadata in the metadata of a PDF file?

 

Thank you,

Vincent

 

______________________________________________

Vincent M. Lizzi

Head of Information Standards | Taylor & Francis Group 

530 Walnut St., Suite 850, Philadelphia, PA 19106

E-Mail:  <mailto:vincent.lizzi@taylorandfrancis.com>
vincent.lizzi@taylorandfrancis.com

Web:  <http://www.tandfonline.com> www.tandfonline.com

 

Taylor & Francis is a trading name of Informa UK Limited,

registered in England under no. 1072954

 

"Everything should be made as simple as possible, but not simpler."

 

 

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