total pages in external PDF

total pages in external PDF

[Pablo Rodriguez]

Dear list,

I need to get the number of pages from an external PDF file that I also
define with an \env.

I think I could get something like this.:

    \def\Myfilename{\env{filename}}
    doc = epdf.open(arg[\MyFilename])
    total_pages_ =  doc:getNumPages()
    \def\Mypages{total_pages}

But mixing both lua and ConTeXt commands the wrong way won’t work.

Sorry, but this is all Greek to me. Although I see how it could be done,
I cannot write the code for this.

Which is the right way to get the code above working?

Many thanks for your help,


Pablo
-- 
http://www.ousia.tk
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___________________________________________________________________________________

Re: total pages in external PDF

[Hans Hagen]

On 2/25/2015 6:41 PM, Pablo Rodriguez wrote:
> Dear list,
>
> I need to get the number of pages from an external PDF file that I also
> define with an \env.
>
> I think I could get something like this.:
>
>      \def\Myfilename{\env{filename}}
>      doc = epdf.open(arg[\MyFilename])
>      total_pages_ =  doc:getNumPages()
>      \def\Mypages{total_pages}
>
> But mixing both lua and ConTeXt commands the wrong way won’t work.
>
> Sorry, but this is all Greek to me. Although I see how it could be done,
> I cannot write the code for this.
>
> Which is the right way to get the code above working?

\getfiguredimensions[whatever.pdf] \noffigurepages

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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://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
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___________________________________________________________________________________

Re: total pages in external PDF

[Aditya Mahajan]

[-- Attachment #1: Type: TEXT/PLAIN, Size: 1029 bytes --]

On Wed, 25 Feb 2015, Pablo Rodriguez wrote:

> Dear list,
>
> I need to get the number of pages from an external PDF file that I also
> define with an \env.
>
> I think I could get something like this.:
>
>    \def\Myfilename{\env{filename}}
>    doc = epdf.open(arg[\MyFilename])
>    total_pages_ =  doc:getNumPages()
>    \def\Mypages{total_pages}
>
> But mixing both lua and ConTeXt commands the wrong way won’t work.
>
> Sorry, but this is all Greek to me. Although I see how it could be done,
> I cannot write the code for this.
>
> Which is the right way to get the code above working?

From my old cut-n-paste module (to format two column pdfs into one column 
so that they are easier to read on an eink reader)

\useexternalfigure[cnp:name][\cut!n!paste!parameter\c!name]% Is this really needed?
\getfiguredimensions[cnp:name]%
\edef\cut!n!paste!NOfpages {\noffigurepages}%

Aditya

[1]: 
https://github.com/adityam/cut-n-paste/blob/master/tex/context/third/cut-n-paste/t-cut-n-paste.tex

[-- Attachment #2: Type: text/plain, Size: 485 bytes --]

___________________________________________________________________________________
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://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: total pages in external PDF

[Pablo Rodriguez]

On 02/25/2015 10:45 PM, Hans Hagen wrote:
> On 2/25/2015 6:41 PM, Pablo Rodriguez wrote:
>> [...]
>>      \def\Myfilename{\env{filename}}
>>      doc = epdf.open(arg[\MyFilename])
>>      total_pages_ =  doc:getNumPages()
>>      \def\Mypages{total_pages}
>> [...]
>> Which is the right way to get the code above working?
> 
> \getfiguredimensions[whatever.pdf] \noffigurepages

Many thanks for your reply, Hans.

It works like charm.

Now I can generate my booklets fully automatic (for the people :-)).

Many thanks again for your help,


Pablo
-- 
http://www.ousia.tk
___________________________________________________________________________________
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://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: total pages in external PDF

[Pablo Rodriguez]

On 02/25/2015 11:05 PM, Aditya Mahajan wrote:
> On Wed, 25 Feb 2015, Pablo Rodriguez wrote:
>> I need to get the number of pages from an external PDF file that I also
>> define with an \env.
>> [...]
> 
> From my old cut-n-paste module (to format two column pdfs into one column 
> so that they are easier to read on an eink reader)
> 
> \useexternalfigure[cnp:name][\cut!n!paste!parameter\c!name]% Is this really needed?
> \getfiguredimensions[cnp:name]%
> \edef\cut!n!paste!NOfpages {\noffigurepages}%

Many thanks for your reply, Aditya.


Pablo
-- 
http://www.ousia.tk
___________________________________________________________________________________
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://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________