I did
texexec --pdfarrange --paper=a5a4 --noduplex --print=up test.pdf
and saw this error
[..]
(texexec.tex[/usr/local/share/texmf/pdftex/config/pdftex.cfg]
ConTeXt ver: 2001.11.13 fmt: 2001.11.16 int: english mes: english
language : language de is active
system : cont-new loaded
(/usr/local/share/texmf/tex/context/base/cont-new.tex
systems : beware: some patches loaded from cont-new.tex!
system (E-TEX) : [line 473] \ifcsname
)
system : cont-old loaded
(/usr/local/share/texmf/tex/context/base/cont-old.tex
loading : Context Old Macros
)
system : cont-fil loaded
(/usr/local/share/texmf/tex/context/base/cont-fil.tex
loading : Context File Synonyms
)
bodyfont : 12pt rm is loaded
language : patterns 2-de-2 2-en-2 2-uk-2 2-fr-2 2-nl-2 loaded
specials : tex,postscript,rokicki loaded
system : texexec.top loaded
(./texexec.top
specials : tex,postscript,rokicki is reset
specials : loading definition file tpd
(/usr/local/share/texmf/tex/context/base/spec-tpd.tex
systems : please update your pdfTeX binaries
specials : loading definition file fdf
(/usr/local/share/texmf/tex/context/base/spec-fdf.tex <unprotect 3>
<unprotect 4> <protect 4> <protect 3>)
specials : fdf loaded
<unprotect 3> <protect 3>)
specials : fdf,tpd loaded
! Undefined control sequence.
l.4 \stelpapierformaatin
[A5][A4]
Marko