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Old 09-11-2022, 10:36 PM
Laurence Finston Laurence Finston is offline
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Join Date: Sep 2021
Location: Germany
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Quote:
Originally Posted by lfuente View Post
The ratio between A3 and A4 is 1.414
This is correct. The dimensions of DIN A4 portrait are width x height 210mm x 297mm. The dimensions of DIN A3 portrait are 297mm x 420mm.
The long side of A_x is always equal to the short side of A_(x+1) and the long side of A_(x+1) is always equal to 2 times the short side of A_x.

This is one way of scaling an image: It is straightforward to convert the most common graphics formats to one another using GIMP. Load (or import) a file in GIMP and then export it as Encapsulated PostScript by using the suffix ".eps".

Then, write a TeX file containing the following code:

%% Set the dimensions of the document:

\vsize=297mm %% For DIN A4 portrait
\hsize=210mm

or

\vsize=11in %% For 8 1/2 by 11 inches
\hsize=8.5in

Say we're using 8 1/2 by 11:

\special{papersize=8.5in, 11in}
\input epsf
\epsfsize#1#2{1.414#1} %% This sets the scaling to 1.414.

Then to include the image:

\epsffile{myfile.eps}

You can change the scaling at any time by calling \epsfsize again with a different argument for the scale.

To position an image on the page you can use something like this:

\vbox to \vsize{%
\vskip.5in %% Skip down half an inch
\hskip.75in %% Skip to the right 3/4in
\line{\epsffile{myfile.eps}\hss}
\vss}

\bye %% End the document

To make a PDF from this TeX file call the following commands from the command line:

tex mydocument.tex
dvipdfmx mydocument.dvi

pdftex doesn't work with epsf.

If anyone wants a complete example, I'll be happy to put one together (I've got dozens).
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