\pdfmajorversion

[David Carlisle]

> +        if (pdf_major_version < 1) or (pdf_major_version > 2) then begin

I think (even though only 1 or 2 are valid now) we should allow any
integer here, otherwise in 10 years time when pdf 3 comes out someone
is going to have to find all the places that have a built in
assumption of just 1 or 2 and update the code.

A macro layer could choose to warn the user if they set this to 42
now, but I'm not sure that it should be an error in the engine code.

David