[texhax] Splitting 2-up pages

[Reinhard Kotucha]

On 2019-02-25 at 15:46:47 +0000, Philip Taylor wrote:

 > \count 254 = 0

I suppose that we have to start with page 1.

 > \ifnum \count 254 < 100 %%% maximum page number

Assuming that you are using pdftex, you can determine the number of
pages in advance (before \loop):

  \pdfximage page 1 {two-up.pdf}
  \count253=\pdflastximagepages
  \count 254 = 1

  [...]

  \ifnum \count 254 < \count 253

You can try this with plain pdftex:

  \pdfximage page 1 {two-up.pdf}
  \count253=\pdflastximagepages
  \message{^^Jlast page=\the\count253.^^J}
  \bye

Regards,
  Reinhard

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