您需要找出页数，然后将其与pdftk cat函数一起使用，因为(AFAICT)pdftk不允许指定“自上一偏移量”。

Poppler([http://poppler.freedesktop.org/)]中的'pdfinfo'这样的工具可以提供此功能。

将其包装在一些bash脚本中可以轻松实现以下过程的自动化：

page_count=`pdfinfo "$INFILE" | grep 'Pages:' | awk '{print $2}'`

page_count=$(( $page_count - 1 ))

pdftk A="$INFILE" cat A1-$page_count output "$OUTFILE"

显然，可以在上述脚本中添加参数，错误检查和不该做的：

#! /bin/sh

### Path to the PDF Toolkit executable 'pdftk'

pdftk='/usr/bin/pdftk'

pdfinfo='/usr/bin/pdfinfo'

####################################################################

script=`basename "$0"`

### Script help

if [ "$1" = "" ] || [ "$1" = "-h" ] || [ "$1" = "--help" ] || [ "$1" = "-?" ] || [ "$1" = "/?" ]; then

echo "$script: []"

echo " Removes the last page from the PDF, overwriting the source"

echo " if no output filename is given"

exit 1

fi

### Check we have pdftk available

if [ ! -x "$pdftk" ] || [ ! -x "$pdfinfo" ]; then

echo "$script: The PDF Toolkit and/or Poppler doesn't seem to be installed"

echo " (was looking for the [$pdftk] and [$pdfinfo] executables)"

exit 2

fi

### Check our input is OK

INFILE="$1"

if [ ! -r "$INFILE" ]; then

echo "$script: Failed to read [$INFILE]"

exit 2

fi

OUTFILE="$2"

if [ "$OUTFILE" = "" ]; then

echo "$script: Will overwrite [$INFILE] if processing is ok"

fi

timestamp=`date +"%Y%m%d-%H%M%S"`

tmpfile="/tmp/$script.$timestamp"

page_count=`$pdfinfo "$INFILE" | grep 'Pages:' | awk '{print $2}'`

page_count=$(( $page_count - 1 ))

### Do the deed!

$pdftk A="$INFILE" cat A1-$page_count output "$tmpfile"

### Was it good for you?

if [ $? -eq 0 ]; then

echo "$script: PDF Toolkit says all is good"

if [ "$OUTFILE" = "" ]; then

echo "$script: Overwriting [$INFILE]"

cp -f "$tmpfile" "$INFILE"

else

echo "$script: Creating [$OUTFILE]"

cp -f "$tmpfile" "$OUTFILE"

fi

fi

### Clean Up

if [ -f "$tmpfile" ]; then

rm -f "$tmpfile"

fi