How to modify the paper dimensions in plain TeX?

Question

I mean the whole paper, not only the text zone in it.

I want the dvi output to look 1 centimetre x 10 metres in the viewer if I set these dimensions in the tex file.

And I don't want to go through LaTeX for it.

Answer 1

Add \special{papersize=1cm,1000cm} in the first page of the document. This is really a dvips extension, but many dvi viewers understand it. (And of course set \hsize, \vsize etc. to control the positioning of text.)

Answer 2

A couple of useful links: The size of printed output and Getting the right paper geometry from (La)TeX.

Of course, googling is much more efficient once I get the answer.