Do you mean by adding to my document \setupbackend[xmpfile=…] ? And if so, how do I actually write a xmpfile? Steffen

Am 30.04.2025 um 10:56 schrieb Gottschalt, Johannes :

Would https://wiki.contextgarden.net/Command/setupbackend work if you include the requisite information in your XMP file?

Best J

-----Ursprüngliche Nachricht----- Von: Steffen Wolfrum Gesendet: Mittwoch, 30. April 2025 07:49 An: mailing list for ConTeXt users Betreff: [NTG-context] TDM Reservation Protocol (TDMRep)

Hi,

we just saw the Accessibility Directive, now there is another demand: the TDM protocol (concerning the reuse of protected works for AI training purposes).

Is it possible to implement these TDM Metadata when producing PDF files with ConTeXt?

This technique provides a way to embed the rightsholder's choice into a PDF file. (See «§6.6 TDM Metadata in PDF files»: https://www.w3.org/community/reports/tdmrep/CG-FINAL-tdmrep-20240510/#sec-pd...)

Steffen

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On 5/1/25 00:02, Rik Kabel wrote:

[...] I took the route described in the mailing list at https://www.mail- archive.com/ntg-context@ntg.nl/msg64956.html and inserted it successfully as follows:

|\setupbackend[format={PDF/UA-1}] \setuptagging[state=start] \enabledirectives[backend.usetags=crap] \startluacode lpdf.injectxmpinfo("xml://rdf:RDF","tdm:reservation1",false) \stopluacode |

Many thanks for the code, Rik. Just in case anyone intends to use any form of TDM reservation, it seems that it might break PDF/A validation. I haven’t tested it, but there is a warning: https://www.w3.org/community/reports/tdmrep/CG-FINAL-tdmrep-20240510/#issue-.... Just in case it helps, Pablo

On 2025-05-01 06:32, Pablo Rodriguez via ntg-context wrote:

On 5/1/25 00:02, Rik Kabel wrote:

...

[...] I took the route described in the mailing list at https://www.mail- archive.com/ntg-context@ntg.nl/msg64956.html and inserted it successfully as follows:

|\setupbackend[format={PDF/UA-1}] \setuptagging[state=start] \enabledirectives[backend.usetags=crap] \startluacode lpdf.injectxmpinfo("xml://rdf:RDF","tdm:reservation1",false) \stopluacode |

Many thanks for the code, Rik.

Just in case anyone intends to use any form of TDM reservation, it seems that it might break PDF/A validation.

I haven’t tested it, but there is a warning: https://www.w3.org/community/reports/tdmrep/CG-FINAL-tdmrep-20240510/#issue-....

Just in case it helps,

Pablo

PDF/UA-1 documents may also conform to PDF/A-2 (ISO 19005-2) or PDF/A-3 (ISO 19005-3). In such cases, these PDF/A standards require the inclusion of XMP Extension Schema for custom XMP metadata not defined in

Indeed, it does fail VeraPDF tests for PDF/A-3A if no effort is made to accept the XMP, but it passes VeraPDF testing as PDF/UA-1. At https://pdfa.org/resource/iso-14289-pdfua/, one can read: the relevant ISO 19005 part. The PDF Association provides free XMP Extension Schema templates for PDF/UA-1, other ISO PDF subset standards, and PDF Declarations. The phrase "free XMP Extension Schema templates" links to https://pdfa.org/resource/xmp-extension-schema-templates/, where we read, inter alia:

This W3C report _incorrectly_ notes that PDF/A validators will raise errors if TDMRep properties are present in the XMP metadata section of PDF documents. As clearly stated in ISO 19005-1 (PDF/A-1), ISO 19005-2 (PDF/A-2), and ISO 19005 (PDF/A-3) appropriate XMP Extension Schema must always be included. This download link (XML) is a free XMP Extension Schema template in “PDF/A extension schema container schema” syntax appropriate for inclusion in PDF/A-1, PDF/A-2, and PDF/A-3 files that supports TDMRep.

I have not succeeded in integrating the provided extension schema. -\- Rik

Thank you Rik. My personal context-archive seems to have some white spots in year 2012… I didn't find this thread, thanks for digging it out ;o) Steffen

Am 01.05.2025 um 00:02 schrieb Rik Kabel :

On 2025-04-30 08:55, Steffen Wolfrum wrote:

...

Do you mean by adding to my document \setupbackend[xmpfile=…] ?

And if so, how do I actually write a xmpfile?

Steffen

I took the route described in the mailing list at https://www.mail-archive.com/ntg-context@ntg.nl/msg64956.html https://www.mail-archive.com/ntg-context@ntg.nl/msg64956.html and inserted it successfully as follows:

\setupbackend[format={PDF/UA-1}] \setuptagging[state=start] \enabledirectives[backend.usetags=crap] \startluacode lpdf.injectxmpinfo("xml://rdf:RDF","tdm:reservation1",false) \stopluacode -- Rik

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On 30 Apr 2025, at 17:32, Pablo Rodriguez via ntg-context wrote:

But do you really think this may be worth the hassle?

If we're going to spend effort to counter AI crawlers then I think I would prefer to have an option to poison files. Recently, YouTuber F4mi, who creates some excellent deep dives on obscure technology, detailed her efforts "to poison any AI summarisers that were trying to steal my content to make slop." https://www.youtube.com/watch?v=NEDFUjqA1s8 Essentially she creates large amounts of nonsense text as YouTube subtitles but sets them to appear off-screen. The real subtitles appear on screen so normal users don't notice but unless the bot spends the effort to work out whether text is visible or not they will slurp up the nonsense and hopefully poison their models. Perhaps ConTeXt could introduce something similar where invisible pages or invisible layers of nonsense are auto-generated but can't be seen on screen or when a document is printed? In another group we shared recipes for cows eggs because we feel AI engines aren't aware of the health benefits of a cows egg for breakfast. Regards, — Bruce Horrocks Hampshire, UK

Hi Pablo, … well, it was (again) a demand from publishers, it wasn't my idea. I am absolutely dispassionate regarding this question (as I am more interested in the typographical aspects of typesetting). But I will tell them your concerns, as they are for sure interesting. Yours, Steffen

Am 30.04.2025 um 18:32 schrieb Pablo Rodriguez via ntg-context :

On 4/30/25 07:49, Steffen Wolfrum wrote:

...

Hi,

we just saw the Accessibility Directive, now there is another demand: the TDM protocol (concerning the reuse of protected works for AI training purposes). Hi Steffen,

I have no doubt your suggestion or request is well intended.

But do you really think this may be worth the hassle?

I mean, from Llama is suspected that it has been trained with more than 80TB of unauthorised copies of books (from shadow libraries https://en.wikipedia.org/wiki/Anna%27s_Archive#Meta_lawsuit, https://en.wikipedia.org/wiki/Library_Genesis#Alleged_Meta_AI_training).

Do you really think that reservations will be honoured?

Even when they honour reservations, research purposes seem to be granted without possible reservations (probably also to commercial entities).

As for the record, Google was taken to court in Spain by an individual because of not complying with their robots.txt (not allowing Google to crawl their content).

This went to the Spanish Supreme Court, who ruled that this was a case of «ius usus innocui» (right to harmless use; not exactly fair right).

This was a commercial entity (well, an emporium), making a full copy of a copyrighted work and the author has (or had before this ruling) the right to control distribution of their work.

Sorry for being straight, but this is similar to data protection. As long as we give our data (just by using your phones or using internet), our data are collected, analyzed and traded in order to influence our behaviour.

I’m afraid that this is part of sharing documents on the internet.

Just my two cents,

Pablo ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

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