[texworks] Setting Typeset Preferences in head of preamble in document

[Paul A Norman]

Hi,

Been used to setting my typesetting runtime preferences in the Edit
Preferences under Typesetting tab and processing tools

Just found out (under MiKTeX at least) that the very top of a .tex
(pdflatex) document can receive pdflatex typesetting switches, like
changing the output name
(http://www.latex-community.org/forum/viewtopic.php?f=5&t=3021&st=0&sk=t&sd=a&start=0#p11886)

If its mentioned in our Tw manual I missed it so far, but this seems
pretty useful.

You seem to need to place these above the normal template' suggested
top two lines

% !TEX TS-program = pdflatex
% !TEX encoding = UTF-8 Unicode


List of qavailabel switches:
http://docs.miktex.org/manual/pdftex.html

Not sure yet whether these can be combined on one line.

This one lets you set a different output name when you need one (like
when using pdfpages package):

%& --job-name=Light-Works-A5.pdf
of for e.g.
%& --job-name=Light-Works-A4.pdf

(Obviously sync is not available with a different output name?)

Seems a safer place to use

%&  --enable-write18
or
%& --restrict-write18
  and
%&  --enable-pipes

rather than bulk setting in Tw Preferences.

There is even a -

%&--disable-pipes
  and
%&--disable-write18

available.

Presume this is distribution specific e.g.  TeXLive would handle this
differently -- or is this a general pdflatex wide thing?

Paul