On Sat, 14 Jan 2023 at 10:24, luigi scarso wrote:

On Wed, 11 Jan 2023 at 00:28, Ulrike Fischer wrote:

...

In pdftex "if the \pdfpageattr value contains the string /MediaBox, then pdfTEX omits outputting its own /MediaBox value". That means that the following produce a PDF with only one /MediaBox in the page dictionary:

\pdfcompresslevel0 \pdfobjcompresslevel0 \pdfpageattr{/MediaBox [0 0 200 300]} abc \bye

The same is not true for luatex:

\pdfvariable compresslevel = 0 \pdfvariable objcompresslevel = 0 \pdfvariable pageattr{/MediaBox [0 0 200 300]} abc

\bye

leads to two entries (using pdf.setpageattributes gives the same):

/MediaBox [ 0 0 595.276 841.89 ] /MediaBox [0 0 200 300]

Would it be possible to copy the pdftex behaviour also in luatex?

(sorry for the delay...) Hans and I are talking about it, parsing here is a bit fragile thing .

done, commit 338157d2e519f45654d56cf5f4f2ffed06c818b1 Author: Luigi Scarso Date: Tue Jan 17 02:08:20 2023 +0100 \pdfvariable omitmediabox 1 (H.Hagen)