Re: [dev-context] fix output intent subtype

Am 24.10.2017 um 10:01 schrieb Peter Rolf:

Am 24.10.2017 um 09:15 schrieb Hans Hagen:

...

On 10/23/2017 11:14 PM, Peter Rolf wrote:

...

Am 23.10.2017 um 19:14 schrieb Hans Hagen:

...

On 10/23/2017 7:01 PM, luigi scarso wrote:

...

...

Hans,

according to Boris Doubrov (one of the developers of the veraPDF parser for PDF/A validation) the subtype of the /OutputIntent dictionary for all PDF/A intents should be GTS_PDFA1 (no GTS_PDFA2 or GTS_PDFA3).

Here is his reply for reference: https://github.com/veraPDF/veraPDF-parser/issues/317#issuecomment-338613962.

The attached patch fixes the issue. I have tried it myself and it solves the problems with color space profiles.

Could you apply it to ConTeXt?

Many thanks for your help, sure, but it's better if we have an example that fails --- I mean, the source code,  the version of the parser , the command

On Mon, Oct 23, 2017 at 6:25 PM, Pablo Rodriguez wrote: line used. It could be that other parts are also not ok. i also want to check with Peter

No objections, the 'gts_flag' is also fix for the PDF/X variants.

So all variants get GTS_PDFA1 ?

Yes. My guess (as I have no ISO documention) at that time was, that the number should be increased with the versions. I couldn't imagine, why the should use a number in that flag (there may be reasons for it, but I donno them).

Anyhow, I'll download veraPDF and test all variants with the actual beta. I doubt that the results will differ. If I find any other errors you can fix them at one go. Will report back (probably after lunch break). I hope nobody is in a hurry :D

Tested all PDF/A versions with veraPDF 1.8.4 and ConTeXt 2017.10.24 10:30. No errors reported.

...

...

I think I have tested all variants at that time (around Oct 2015) and 'veraPDF' didn't throw an error. Looks like they have improved their parser on that part.

Well, for me it means that all that validation esp of keys like this are rather useless (creating work) because docs validated in the past and archived now are suddenly no longer valid.

Well, the good news is that the actual problem does not effect any A1 documents. And even with an incomplete (99.9%) validity the documents stay usable. I'm sure that (alien) historians will love any ConTeXt created PDF/A document :D Anyhow, next time I'm in doubt about an entry I will ask the guys from veraPDF. They have a copy of the ISO docs. Peter

...

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 ----------------------------------------------------------------- _______________________________________________ dev-context mailing list dev-context@ntg.nl https://mailman.ntg.nl/mailman/listinfo/dev-context

_______________________________________________ dev-context mailing list dev-context@ntg.nl https://mailman.ntg.nl/mailman/listinfo/dev-context