[Tex/LaTex] Generating PDF/A-1b compliant documents using pdfx and pdfLaTeX

pdfpdf-apdftex

There are several discussions on the web on how to generate PDF/A-1b compliant documents.

One approach can be found on http://support.river-valley.com/wiki/index.php?title=Generating_PDF/A_compliant_PDFs_from_pdftex which is implemented as far as I can see in the pdfx package.

I created a minimal test.tex file:

\documentclass{article} 
\usepackage[a-1b]{pdfx} 
\begin{document} 
Hello, world! 
\end{document}

From what I understand, I need to place metadata in a separate file called test.xmpdata:

\Title{PDF/A-Compliance}
\Author{Ada Lovelace}
\Org{TeX University}
\Keywords{PDF/A}

I compile test.tex using pdfTeX 3.1415926-1.40.10-2.2 (TeX Live 2009/Debian).

For validation of PDF/A-1b compliancy, I use jhove and a PDF export from LibreOffice as a positive control.

jhove -m pdf-hul test.pdf

However, jhove laments

ErrorMessage: Lexical error
  Offset: 16530

So my test.pdf file does not seem to be PDF/A compliant.
Could you please give me hints on additional diagnostics to run in order to pin down the problem?

Best Answer

See updated solution

https://tex.stackexchange.com/a/535849/50129

OUTDATED

Generating PDFA-1b compliant documents is not possible with the default pdftex. There is a minor bug in pdftex resulting in non-compliant EOL markers. There is a bug report from 2011 about this problem which successfully resolves the issue. You can find it here:

http://sarovar.org/tracker/index.php?func=detail&aid=4341&group_id=106&atid=493

There is also a file attached to this report: http://sarovar.org/tracker/download.php/106/493/4341/10821/verify_this_sample.zip

It contains instructions on how to patch pdftex to generate PDFA-1b compatible files. The package also contains a patched version of pdfx. Unfortunately, these changes did not made it into the code base yet.

Related Solutions

[Tex/LaTex] Adding metadata using pdfx fails

Your provided example works fine for me. Therefore, I have to assume there is some confusion about the XMP Metadata and/or the process on how to typeset the document.

First of all, XMP metadata is not the PDF metadata, e.g. XMP data can be viewed by using Adobe Acrobat: File, Properties, Additional Metadata; whereas the normal metadata already shows up under file, properties.

Secondly: Do you use pdflatex to create your document?

[Tex/LaTex] Problem with xmpincl

The argument to \includexmp should be a file name (without the .xmp extension), modelled on the license.xmp file found in the package distribution:

<x:xmpmeta xmlns:x='adobe:ns:meta/'>
   <rdf:RDF xmlns="http://web.resource.org/cc/"
      xmlns:dc="http://purl.org/dc/elements/1.1/"
      xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
      <Work rdf:about="">
         <dc:title>xmpincl</dc:title>
         <dc:date>2005</dc:date>
         <dc:description>
            A LaTeX package to include XMP metadata in
            files generated through pdfLaTeX
         </dc:description>
         <dc:creator>
            <Agent><dc:title>Maarten Sneep</dc:title></Agent>
         </dc:creator>
         <dc:rights>
            <Agent><dc:title>Maarten Sneep</dc:title></Agent>
         </dc:rights>
         <dc:source
            rdf:resource="ftp://ftp.tex.ac.uk/tex&#45;archive/macros/latex/contrib/xmpincl.tar.gz"/>
         <license rdf:resource="http://creativecommons.org/licenses/GPL/2.0/" />
      </Work>
      <License rdf:about="http://creativecommons.org/licenses/GPL/2.0/">
         <permits rdf:resource="http://web.resource.org/cc/Reproduction" />
         <permits rdf:resource="http://web.resource.org/cc/Distribution" />
         <requires rdf:resource="http://web.resource.org/cc/Notice" />
         <permits rdf:resource="http://web.resource.org/cc/DerivativeWorks" />
         <requires rdf:resource="http://web.resource.org/cc/ShareAlike" />
         <requires rdf:resource="http://web.resource.org/cc/SourceCode" />
      </License>
   </rdf:RDF>
</x:xmpmeta>

The file pdfa-1b.xmp that's part of the pdfx distribution doesn't set the Producer:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%                                                                 
%%  File: pdfa-1b.xmp                                         
%% 
%%  Copyright (c) 2008, CV Radhakrishnan <cvr@river-valley.org>,
%%    Han The Thanh <thanh@river-valley.org>
%% 
%%  This file may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.2 of this
%%  license or (at your option) any later version.  The latest version
%%  of this license is in:
%% 
%%    http://www.latex-project.org/lppl.txt
%% 
%%  and version 1.2 or later is part of all distributions of LaTeX
%%  version 1999/12/01 or later.
%%
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 4.0-c316 44.253921, Sun Oct 01 2006 17:14:39">
   <rdf:RDF xmlns:rdf       = "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
            xmlns:pdfx      = "http://ns.adobe.com/pdfx/1.3/"
            xmlns:pdfaid    = "http://www.aiim.org/pdfa/ns/id/"
            xmlns:xap       = "http://ns.adobe.com/xap/1.0/"
            xmlns:xapRights = "http://ns.adobe.com/xap/1.0/rights/"
            xmlns:dc        = "http://purl.org/dc/elements/1.1/"
            xmlns:dcterms   = "http://purl.org/dc/terms/"
        xmlns:prism     = "http://prismstandard.org/namespaces/basic/2.0/">
      <rdf:Description rdf:about="" xmlns:pdf="http://ns.adobe.com/pdf/1.3/">
      <pdf:Producer>\xmpProducer</pdf:Producer>
      </rdf:Description>
      <rdf:Description rdf:about="doi:\xmpDoi">
         <dc:format>application/pdf</dc:format>
         <dc:title>\xmpTitle</dc:title>
         <dc:creator><rdf:Seq><rdf:li>\xmpAuthor</rdf:li></rdf:Seq></dc:creator>
\@ifundefined{xmpKeywords}{}{<dc:subject><rdf:Bag><rdf:li>\xmpKeywords</rdf:li></rdf:Bag></dc:subject>}
         <prism:aggregationType>journal</prism:aggregationType>
     <prism:copyright>\xmpOrg</prism:copyright>
         <dc:publisher>\xmpOrg</dc:publisher>
     \ifx\xmpJournalnumber\@empty\relax\else<prism:issn>\xmpJournalnumber</prism:issn>\fi
     \ifx\xmpVolume\@empty\relax\else<prism:volume>\xmpVolume</prism:volume>\fi
     \ifx\xmpIssue\@empty\relax\else<prism:number>\xmpIssue</prism:number>\fi
     \ifx\xmpCoverDisplayDate\@empty\relax\else<prism:coverDisplayDate>\xmpCoverDisplayDate</prism:coverDisplayDate>\fi
     \ifx\xmpCoverDate\@empty\relax\else<prism:coverDate>\xmpCoverDate</prism:coverDate>\fi
     \ifx\xmpJournaltitle\@empty\relax\else<prism:issueName>\xmpJournaltitle</prism:issueName>\fi
     \ifx\xmpFirstpage\@empty\relax\else<prism:pageRange>\xmpFirstpage-\xmpLastpage</prism:pageRange>\fi
         \ifx\xmpFirstpage\@empty\relax\else<prism:startingPage>\xmpFirstpage</prism:startingPage>\fi
         \ifx\xmpLastpage\@empty\relax\else<prism:endingPage>\xmpLastpage</prism:endingPage>\fi
         \ifx\xmpDoi\@empty\relax\else<prism:doi>\xmpDoi</prism:doi>\fi
         \ifx\xmpDoi\@empty\relax\else<prism:url>http://dx.doi.org/\xmpDoi</prism:url>\fi
         \ifx\xmpDoi\@empty\relax\else<dc:identifier>doi:\xmpDoi</dc:identifier>\fi
         \ifx\xmpAuthoritativeDomain\@empty\relax\else<pdfx:AuthoritativeDomain><rdf:Bag><rdf:li>\xmpAuthoritativeDomain</rdf:li></rdf:Bag></pdfx:AuthoritativeDomain>\fi
         <pdfaid:part>1</pdfaid:part>
         <pdfaid:conformance>B</pdfaid:conformance>
         <xap:CreatorTool>\xmpCreatorTool</xap:CreatorTool>
         <xapRights:Marked>True</xapRights:Marked>
         <xap:ModifyDate>\convDate</xap:ModifyDate>
         <xap:CreateDate>\convDate</xap:CreateDate>
         <xap:MetadataDate>\convDate</xap:MetadataDate>
      </rdf:Description>
%      <rdf:Description rdf:about="" xmlns:xapMM="http://ns.adobe.com/xap/1.0/mm/">
%         <xapMM:DocumentID>uuid:\xmpdocid</xapMM:DocumentID>
%         <xapMM:InstanceID>uuid:\xmpinstid</xapMM:InstanceID>
%      </rdf:Description>
   </rdf:RDF>
</x:xmpmeta>
%%
%% End of pdfa-1b.xmp
%%
%%

Copy it in your working directory and modify it (with a different name).

Another strategy, of course, is to define \xmpProducer and the other needed macros appearing in pdfa-1b.xmp before loading it:

\usepackage{xmpincl}

\providecommand{\xmpProducer}{LaTeX2e}
\providecommand{\xmpOrg}{An organization}
% ...
\includexmp{pdfa-1b}