Dear Luigi, thanks for the link. I tried the validation with a little simplified example, which I show below. VeraPDF reports some errors, see attached `test-result.xml`. Unfortunately, VeraPDF cannot handle my production document and crashes during validation :( (see attached `production-result.xml`). Also, it seems that leaving out `intent` does not make any difference. Cheers, Henri --- \setupinteraction [ title=TITLE, subtitle=SUBTITLE, author=AUTHOR, keyword={KEYWORD1, KEYWORD2, KEYWORD3}, ] \setupbackend [ format={pdf/a-2a}, profile={default_cmyk.icc,default_rgb.icc,default_gray.icc}, ] \setupstructure[state=start,method=auto] \starttext \startchapter[title=Testing] \input knuth \stopchapter \stoptext On 10/13/2016 03:13 PM, luigi scarso wrote:

On Thu, Oct 13, 2016 at 3:03 PM, Henri Menke wrote:

...

Dear list, (especially Luigi)

for online publication I need to create a PDF/A compliant output file. Does anyone have any experience with it and can tell me whether my setup will work? So far I'm using

\setupbackend [ format={pdf/a-2a}, profile={default_cmyk.icc,default_rgb.icc,default_gray.icc}, ] \setupstructure[state=start,method=auto]

I chose PDF/A-2a because there I can have PDF 1.7 which keeps the file size down but I can also switch to PDF/A-1a. I have *no* external pixel graphics, just included PDFs which are also produced by ConTeXt with the same setup.

Online I found Luigi's paper on PDF/A-1a [1]. However, even after reading I'm unsure whether `intent` is optional or required.

Since I don't own Adobe Acrobat (nor am I using Windows) I cannot verify the resulting output. Does anyone know any working free or open-source tools for GNU/Linux to do this task? Have a look at http://verapdf.org/software/ and test the file below with $> verapdf -v -x -f 1a test.pdf It should be ok

The icc files default_cmyk.icc default_gray.icc default_rgb.icc are from ghostscript, put them in the same directory of the test.

\nopdfcompression \setupinteraction [title=TITLE, subtitle=SUBTITLE, author=AUTHOR, keyword={{KEYWORD1, KEYWORD2}, KEYWORD3}]

%% For PDF/A \setupbackend[ format={pdf/a-1a:2005}, % or pdf/a-1a:2005 profile={default_cmyk.icc,default_rgb.icc,default_gray.icc}, intent=ISO coated v2 300\letterpercent\space (ECI)]

%% Tagged PDF %% method=auto ==> default tags by Adobe \setupbackend[export=yes] \setupstructure[state=start,method=auto]

\startchapter[title=Testing] \startcolor[red] \input knuth \stopcolor \input tufte

\input knuth

\placefigure[middle][fig:foo] {This is an image} {\externalfigure[cow.jpg]}

\input tufte

\stopchapter

\stoptext

I'm in a middle of something else now, I will look into it next days, but you can play a bit and report problems.

Am 13.10.2016 um 16:23 schrieb luigi scarso:

...

Dear Luigi,

thanks for the link. I tried the validation with a little simplified example, which I show below. VeraPDF reports some errors, see attached `test-result.xml`. Unfortunately, VeraPDF cannot handle my production document and crashes during validation :( (see attached `production-result.xml`). Also, it seems that leaving out `intent` does not make any difference.

Cheers, Henri

---

\setupinteraction [ title=TITLE, subtitle=SUBTITLE, author=AUTHOR, keyword={KEYWORD1, KEYWORD2, KEYWORD3}, ]

\setupbackend [ format={pdf/a-2a}, profile={default_cmyk.icc,default_rgb.icc,default_gray.icc}, currently 2a is not supported , you should use 1a

On Thu, Oct 13, 2016 at 3:40 PM, Henri Menke wrote: format={pdf/a-1a:2005}, % or pdf/a-1a:2005

It's supported (along PDF/A-3a), but untested and undocumented. It was just a prerequirement when adding PDF/UA-1. I couldn't find a validator for it (only own Acrobat Pro 9) that time. Meanwhile I stumpled over https://www.pdf-tools.com/pdf/validate-pdfa-online.aspx but haven't found the time (and mood!) to test it. Peter

Am 14.10.2016 um 11:22 schrieb luigi scarso:

On Thu, Oct 13, 2016 at 4:58 PM, Peter Rolf wrote:

...

Meanwhile I stumpled over

https://www.pdf-tools.com/pdf/validate-pdfa-online.aspx

but haven't found the time (and mood!) to test it.

it fails for pdf/a-1a with the test.pdf made by context Validating file "test.pdf" for conformance level pdfa-1a Invalid content of XMP packet header attribute 'id': 'frpyaihfvjcmxbxoohwuhyjt'. pdfaExtension:schemas/*[0] :: Missing required field 'valueType' in value type 'Schema'. pdfaExtension:schemas/*[1] :: Missing required field 'valueType' in value type 'Schema'. pdfaExtension:schemas/*[2] :: Missing required field 'valueType' in value type 'Schema'. pdfaExtension:schemas/*[3] :: Missing required field 'valueType' in value type 'Schema'. pdfaExtension:schemas/*[4] :: Missing required field 'valueType' in value type 'Schema'. The document does not conform to the requested standard. The document's meta data is either missing or inconsistent or corrupt. Done.

while verapdf and acrobat (Preflight, 11.0.16 (120) Acrobat version: 11.018) both say that the file is ok.

Sigh.. I had high hopes on this one. Would be nice to have a free and working (in this combination) validator. I'll make some tests over the weekend and contact the author(s). No bug report, no fix. Anyhow, thanks for testing ;) Best wishes, Peter

Am 14.10.2016 um 14:16 schrieb luigi scarso:

On Fri, Oct 14, 2016 at 2:04 PM, Peter Rolf wrote:

...

Sigh.. I had high hopes on this one. Would be nice to have a free and working (in this combination) validator. I'll make some tests over the weekend and contact the author(s). No bug report, no fix.

I have not said that it's wrong, only that it fails to validate the pdf..the validator could be ok infact.

True, that conclusion comes from my side. I'm pretty sure that all needed XMP entries are properly set, so chances are high, that the error is on their side. But we will (hopefully) see. Also: If Acrobat isn't right, what tools are left for validation?

Btw, as I can see from http://www.pdfa.org/2016/08/slide-decks-and-video-recordings-of-the-pdf-days... it seems that there is a bit of depression in validating pdf/a files ....

Interesting, but better don't dig too deep... :D

Dear Peter, thanks for the update. Can you maybe tell what exactly has changed to fix it? I'm on the TL 2016 release and cannot update because I fear regressions for my important document. Cheers, Henri On 10/18/2016 02:54 PM, Peter Rolf wrote:

Hi,

just for the records. The problems were on ConTeXt's side (fixed now), the online validator does a pretty good job.

Peter

Am 14.10.2016 um 17:10 schrieb Peter Rolf:

...

Am 14.10.2016 um 14:16 schrieb luigi scarso:

...

On Fri, Oct 14, 2016 at 2:04 PM, Peter Rolf wrote:

...

Sigh.. I had high hopes on this one. Would be nice to have a free and working (in this combination) validator. I'll make some tests over the weekend and contact the author(s). No bug report, no fix.

I have not said that it's wrong, only that it fails to validate the pdf..the validator could be ok infact.

True, that conclusion comes from my side. I'm pretty sure that all needed XMP entries are properly set, so chances are high, that the error is on their side. But we will (hopefully) see. Also: If Acrobat isn't right, what tools are left for validation?

...

Btw, as I can see from http://www.pdfa.org/2016/08/slide-decks-and-video-recordings-of-the-pdf-days... it seems that there is a bit of depression in validating pdf/a files ....

Interesting, but better don't dig too deep... :D

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

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________

Hello, You can very easily download the beta/standalone installation that can very happily coexist with TL release. All that is needed to choose the standalone version is to modify your PATH appropriately (by sourcing the setuptex script). In fact, we recommend even downloading an installation by project. This can guarantee stability for a particular project way into the future. Alan

On Oct 18, 2016, at 07:44, Henri Menke wrote:

thanks for the update. Can you maybe tell what exactly has changed to fix it? I'm on the TL 2016 release and cannot update because I fear regressions for my important document.