Hi, I implemented the viewer preferences and the flag Direction: R2L.
Direction R2L from Adobe PDF spec:
This entry has no direct effect on the document's contents or page
numbering but may be used to determine the relative positioning
of pages when displayed side by side or printed n-up. Default
value: L2R.
This implementation of the viewer preferences and flags supports only
the Direction R2L. However, this R2L direction is very important for
East Asians to read books. In addition to the Poppler, I locally
added the Direction R2L support to the Evince, and I confirmed that my
Japanese books are displayed as Acrobat does.
I attached two sample pdf files,
normal.pdf : no viewer preferences
r2l.pdf : viewer preferences with Direction R2L
One can check the Direction R2L by the demo program for the glib interface,
$ ./glib/demo/poppler-glib-demo (pdf file)
SAKURAI Masashi (1):
Implements the viewer preferences dict and the entry of Direction
R2L.
glib/demo/info.cc | 35 +++++++++++++++++++++++++++++++++--
glib/poppler-document.cc | 40 ++++++++++++++++++++++++++++++++++++++--
poppler/Catalog.cc | 21 +++++++++++++++++++++
poppler/Catalog.h | 2 ++
4 files changed, 94 insertions(+), 4 deletions(-)
0001-Implements-the-viewer-preferences-dict-and-the-entry.patch
Description: Binary data
normal.pdf
Description: Binary data
r2l.pdf
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