Re: [NTG-context] Acrobat doesn’t read imported metadata

10 Oct 2021


      On 10/10/2021 5:46 PM, Pablo Rodriguez via ntg-context wrote:
...
Dear list,
I have the following sample:
\starttext
   \startluacode
   function document.transfer_metadata(name)
     local main_doc = lpdf.epdf.load(name)
     lpdf.addtoinfo("Title", lpdf.unicode(main_doc.Info.Title),
       lpdf.string(main_doc.Info.Title))
     lpdf.addtoinfo("CreationDate",
       lpdf.string(main_doc.Info.CreationDate))
     lpdf.addtoinfo("ModDate", lpdf.string(main_doc.Info.ModDate),
       main_doc.Info.ModDate)
     lpdf.epdf.unload(name)
   end
   \stopluacode
   \unexpanded\def\TransferMetadata#1%
     {\ctxlua{document.transfer_metadata("#1")}}
   \startTEXpage[offset=1em, align=center]
   \ssbf metadatos\\importados
   \TransferMetadata{metadata.pdf}
   \stopTEXpage
   \stoptext
Being the sample file https://pdf.ousia.tk/metadata.pdf, Acrobat cannot
display the imported title or either the creation or modification dates.
What am I missing to make Acrobat display the imported metadata?
timing, so best use the official methods:
function document.transfer_metadata(name)
     local main_doc = lpdf.epdf.load(name)
     context.setupinteraction { title = main_doc.Info.Title }
     lpdf.epdf.unload(name)
   end

acrobat looks at the metadata blob

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------