pdftk input.pdf cat 5-10 output output.pdf
pdftk input.pdf cat 1 4-5south 6 9 10 output output.pdf
pdftk *.pdf cat output newfile.pdf
pdftk 1.pdf 2.pdf 3.pdf cat output newfile.pdf
pdftk 11.pdf burst
pdftk 11.pdf cat 8-22 24-end output New.pdf
pdfimages -list input.pdf
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.5 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile=smalfile.pdf input.pdf
pdftk broken.pdf output fixed.pdf