I am using:
tiff2pdf -ox.pdf x.tif
to generate a PDF from a TIFF.
Why does the PDF show up as rotated 90 degrees left?
I am using tiff2pdf version 3.9.5 on Solaris. I don't see any options to control the rotation.
If I rotate the image right or left 90% then tiff2pdf creates a PDF with a matching rotation. If I rotate the image back to its original rotation, then tiff2pdf also creates a PDF with a matching rotation.
So maybe there is something funny in the TIF, which is coming from a scanner, that gets fixed up when the TIF is rotated.
WORKAROUND: I found that if I first use this command on the original TIF:
tiffset -s Orientation 1 x.tif
Then tiff2pdf creates the PDF correctly, even though the original Orientation tag value was already 1. It is like updating the TIFF file somehow corrected some issue. Though I tried using tiffset to set other attributes instead and that did not help ...