When running pdftocairo with -paperw and -paperh arguments, these dimensioners are swapped when a PDF in landscape is given as input file. Thus, width becomes height and height becomes width.
This behavior seems strange, as -W and -H arguments passed when cropping a PDF in landscape mode are not swapped.
I suggest consistent behavior where -paperw and -paperh denote the width and height of the output file, respectively (and not vice versa).
This change was made in poppler-0.38.
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/poppler/poppler/issues/633.