# [NTG-context] total pages in external PDF

Pablo Rodriguez oinos at gmx.es
Wed Feb 25 18:41:46 CET 2015

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?

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