two proposals for attachments in PDF/A-3
Hans, I realized that the values for the /AFRelationship key that I provided in a previous message, are the ones defined for PDF-2.0 (Source, Data, Alternative, Supplement, EncryptedPayload, FormData, Schema or Unspecified). According to https://www.loc.gov/preservation/digital/formats/fdd/fdd000360.shtml, values for the /AFRelationShip key in PDF/A-3 are only: Source, Data, Alternative, Supplement, and Unspecified. If you allow me a suggestion, maybe it would be useful to have two new options in the \setupattachment command: relationship = source data alternative supplement unspecified association = document page The default values could be document and unspecified. The user should know what to do when changing these defaults. Of course, the /AF entry can be placed in other PDF objects, but document and page are enough options to start with. Many thanks for your help, Pablo -- http://www.ousia.tk
On 3/24/2019 6:30 PM, Pablo Rodriguez wrote:
Hans,
I realized that the values for the /AFRelationship key that I provided in a previous message, are the ones defined for PDF-2.0 (Source, Data, Alternative, Supplement, EncryptedPayload, FormData, Schema or Unspecified).
According to https://www.loc.gov/preservation/digital/formats/fdd/fdd000360.shtml, values for the /AFRelationShip key in PDF/A-3 are only: Source, Data, Alternative, Supplement, and Unspecified.
If you allow me a suggestion, maybe it would be useful to have two new options in the \setupattachment command:
relationship = source data alternative supplement unspecified
association = document page
The default values could be document and unspecified. The user should know what to do when changing these defaults.
Of course, the /AF entry can be placed in other PDF objects, but document and page are enough options to start with. hm, these keys look like rubish to me, do they really serve a purpose?
Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
On 3/25/19 11:23 AM, Hans Hagen wrote:
On 3/24/2019 6:30 PM, Pablo Rodriguez wrote:
[...] If you allow me a suggestion, maybe it would be useful to have two new options in the \setupattachment command:
relationship = source data alternative supplement unspecified
association = document page
The default values could be document and unspecified. The user should know what to do when changing these defaults.
Of course, the /AF entry can be placed in other PDF objects, but document and page are enough options to start with. hm, these keys look like rubish to me, do they really serve a purpose?
They are part of the PDF/A-3 and also for the PDF-2.0 specification. In PDF/A-3, they are mandatory for embedded files. (I don’t know whether they are optional in PDF-2.0, but I guess they are.) Pablo -- http://www.ousia.tk
participants (2)
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Hans Hagen -
Pablo Rodriguez