Questions about creation of PDF's

Questions about creation of PDF's

[Tomas Hala]

Hi all,

I came across the following changes in behaviour of compilation. Using this minimal example

\starttext
\pdfminorversion=3
Hello!
\stoptext

I found out that since TL2010 till TL2015, the output PDF is of the version 1.3
whereas TL2016 (which I do not use), TL2017 and current ConTeXt from the
garden produce PDF of version 1.7.

Is there any other (or new) way how to set the output version directly on the source file? 

Simultaneously, I found out that the produced PDF by older version -- since
TL2010 till TL2015 -- contains, e.g., 

"Creator:  ConTeXt - 2015.05.18 12:26"

whereas  TL2017 and current ConTeXt contains very short information

"Creator:  LuaTeX + ConTeXt MkIV"

Is possible to extend this information adding the date&time of the ConTeXt, similarly to the older ones? 

Many thanks in advance,

Tomáš
___________________________________________________________________________________
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
___________________________________________________________________________________

Re: Fwd: Questions about creation of PDF's

[Hans Hagen]

> Hi all,
> 
> I came across the following changes in behaviour of compilation. Using
> this minimal example
> 
> \starttext
> \pdfminorversion=3
> Hello!
> \stoptext
> 
> I found out that since TL2010 till TL2015, the output PDF is of the version 1.3
> whereas TL2016 (which I do not use), TL2017 and current ConTeXt from the
> garden produce PDF of version 1.7.
> 
> Is there any other (or new) way how to set the output version directly
> on the source file?
> 
> Simultaneously, I found out that the produced PDF by older version -- since
> TL2010 till TL2015 -- contains, e.g.,
> 
> "Creator:  ConTeXt - 2015.05.18 12:26"
> 
> whereas  TL2017 and current ConTeXt contains very short information
> 
> "Creator:  LuaTeX + ConTeXt MkIV"
> 
> Is possible to extend this information adding the date&time of the
> ConTeXt, similarly to the older ones?
> 
> Many thanks in advance,
> 
> Tomáš
use something like:

\setupbackend
   [format=pdf/x-1a:2001]

\starttext

test

\stoptext

when a level is changed much more has to change and just flippign a low 
level counter is not enough then (most low level \pdf* commands are 
no-ops in mkiv, some have an implementation that hooks into other code)

in principle we can support pdf 2.0 too (luatex is already adapted) but 
we have no predefined 'formats' for that

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
-----------------------------------------------------------------
___________________________________________________________________________________
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
___________________________________________________________________________________