pageNum, from an input PDF file,
in, and appends it to an output PDF file,
The new page will be rotated by
clockwise (relative to its appearance in the input PDF file).
Rotations of 0, 90, 180, and 270 degrees are allowed.
The CropBox for the new page will be set to (
"LL" refers to the lower-left corner of the page; "UR" refers to the
upper-right corner. The coordinates are in the PDF coordinate space.
xpdfSpliceAddPageRotatedCropped function returns non-zero if
successful, or zero on error.