Re: plain TeX double-page layout?

Either define your own output routine which buffers each pair of two 
consecutive pages then ships out the two pages abutted side by side, or, 
if you don't want to write an output routine then embed the standard 
output routine in your own code (so that you can amend it), change any 
references to \shipout therein from \shipout to \Shipout, \let \Shipout 
= \shipout, then write your own \shipout to buffer the pages as above 
and put each abutted pair of pages on the MVL followed by a \eject.  Of 
course, "preserving the internal links of the PDF" isn't going to work 
if any of those links is to a page number that was fixed before the 
2-up-on-double-width layout was adopted ...

E&OE.

On 08/09/2025 11:22, Rodolfo Medina wrote:
> I suppose it's easy in LaTeX but wonder if it's possible in plain TeX to have a
> double-page layout, i.e. a big page with same height and double width of the
> original which contains two pages together, one aside the other, of the
> original file.  I'm sure it must be possible in plain TeX but can't have an
> idea of how.  Thanks for any suggestion.  Otherwise, I'll have to get what I
> want on the final PDF using some tools like qpdf or similar...  but preserving
> the internal links of the PDF.
>
> Bye,
>
> Rodolfo
>