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Re: PDF: multiple slides per page to one slide per page?

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On Apr 25, 4:35 am, pipitas <pipi...@googlemail.com> wrote:
> I think the following postings on Stackoverflow.com will help you
> solve your problem:
>
>    http://superuser.com/questions/54054/convert-pdf-2-sides-per-page-to-...

Very useful link.  That method was easy to convert to a script, which
is here:

  http://saf.bio.caltech.edu/pub/software/linux_or_unix_tools/unup4.sh

Here is a test file

  http://saf.bio.caltech.edu/bi170c/BMB170c_2011_04_21_LECTURE.pdf

and it works pretty well.

The only thing I can't quite figure out is why the quality of images
degrades.  Text is fine, but even with /prepress there are more
compression artifacts visible in the pictures in the repacked file
than in the original.  With /screen the pictures in the output are
horrible.  The file size also decreases, from 12M to 9.5M, again with /
prepress.  See for instance page 16 in the output (4th subframe of 4th
page in the original.)  My best guess is that this is some sort of
(re)sampling error which results from this

  -g${NWIDTH}x${NHEIGHT}

In the script NWIDTH=3300, NHEIGHT=2476 were determined by trial and
error, as being just large enough to fit the bounding rectangle line
in each of the original subframes.

Is there a gs switch I could add to minimize this issue?

Thanks,

David Mathog

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Re: PDF: multiple slides per page to one slide per page? pipitas <pipitas@googlemail.com> - 2011-04-25 04:35 -0700
  Re: PDF: multiple slides per page to one slide per page? pipitas <pipitas@googlemail.com> - 2011-04-25 05:55 -0700
  Re: PDF: multiple slides per page to one slide per page? David Mathog <dmathog@gmail.com> - 2011-06-21 15:03 -0700
    Re: PDF: multiple slides per page to one slide per page? David Mathog <dmathog@gmail.com> - 2011-06-22 15:35 -0700
      Re: PDF: multiple slides per page to one slide per page? ken <ken@spamcop.net> - 2011-06-23 07:56 +0100
        Re: PDF: multiple slides per page to one slide per page? David Mathog <dmathog@gmail.com> - 2011-06-23 13:56 -0700
          Re: PDF: multiple slides per page to one slide per page? ken <ken@spamcop.net> - 2011-06-24 07:57 +0100
            Re: PDF: multiple slides per page to one slide per page? David Mathog <dmathog@gmail.com> - 2011-06-24 09:33 -0700
              Re: PDF: multiple slides per page to one slide per page? ken <ken@spamcop.net> - 2011-06-24 20:05 +0100
              Re: PDF: multiple slides per page to one slide per page? ken <ken@spamcop.net> - 2011-06-25 11:51 +0100
                Re: PDF: multiple slides per page to one slide per page? David Mathog <dmathog@gmail.com> - 2011-06-27 10:21 -0700
                Re: PDF: multiple slides per page to one slide per page? ken <ken@spamcop.net> - 2011-06-28 08:08 +0100
                Re: PDF: multiple slides per page to one slide per page? David Mathog <dmathog@gmail.com> - 2011-06-27 10:33 -0700
                Re: PDF: multiple slides per page to one slide per page? David Mathog <dmathog@gmail.com> - 2011-06-28 09:22 -0700
                Re: PDF: multiple slides per page to one slide per page? mathog <dmathog@gmail.com> - 2011-06-30 10:34 -0700
                Re: PDF: multiple slides per page to one slide per page? tlvp <tPlOvUpBErLeLsEs@hotmail.com> - 2011-06-30 23:25 -0400

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