For write only: you can also use Ghostscript:
gs \
-o removed-page-1-from-input.pdf \
-sDEVICE=pdfwrite \
-dFirstPage=2 \
/path/to/input.pdf
pdftk ( ).
, Ghostscript input.pdf, . . ( ), .
pdftk PDF .
Update
Ghostscript -dLastPage. -dFirstPage .
-sPageList. :
-sPageList="1, 5-10, 12-"
1, 5-10 12 . , , , .
Ghostscript ( ), PDF GS . :
gs \
-o selected-pages.pdf \
-sDEVICE=pdfwrite \
-dFirstPage=2 \
-dLastPage=2 \
in1.pdf \
\
-dFirstPage=10 \
-dLastPage=15 \
in1.pdf \
\
-dFirstPage=1 \
-dLastPage=1 \
in1.pdf \
\
-dFirstPage=4 \
-dLastPage=6 \
in2.pdf
. , , / ( ), PDF .