[ubuntu] pdftk usage question

[reader4]

Sometimes when the librarians scan papers/books to send me, they get the orientation wrong and all of the even pages need to be rotated 180 degrees. I can rotate all of those pages using pdftk

pdftk in.pdf cat 1-endevenS output out.pdf

But how to 'cat' the odd pages back in, properly interleaved?

Using this just gives me the all the rotated even pages first, then the odd pages:

pdftk in.pdf cat 2-endevenS 1-endodd output out.pdf

[Tillmo]

Use the following shell script. Save it as pdf-rotate-even and make it executable.

#/bin/bash
# script for rotating all even pages of a document

# enough arguments?
if [ $# -ne 2 ]; then
         echo 1>&2 Usage: pdf-rotate-even input.pdf output.pdf
         exit 127
    fi

# generate a temporary directory
TEMPDIR=/tmp/pdf`date +%N`
mkdir $TEMPDIR

# rotate all even pages, keep the odd ones
pdftk $1 cat 1-endodd output $TEMPDIR/odd.pdf
pdftk $1 cat 1-endevenS output $TEMPDIR/even.pdf

# split the files...
pdftk $TEMPDIR/odd.pdf burst output $TEMPDIR/pg%04d_A.pdf
pdftk $TEMPDIR/even.pdf burst output $TEMPDIR/pg%04d_B.pdf

# ... and recombine them, "_A" and "_B" suffixes leading to the correct order
pdftk $TEMPDIR/pg*.pdf cat output $2

# cleanup
rm -r $TEMPDIR

[fungs]

Thanks for the script, I had the same problem.

I suggest du use evenD instead of evenS since it will rotate relatively by 180 degrees.