页面范围-Nautilus脚本
总览
我根据链接到的@ThiagoPonte教程创建了一个稍微高级的脚本。其主要特点是
- 它是基于GUI的
- 与文件名中的空格兼容，
- 并基于三个能够保留原始文件所有属性的后端
屏幕截图
码
#!/bin/bash
#
# TITLE: PDFextract
#
# AUTHOR: (c) 2013-2015 Glutanimate (https://github.com/Glutanimate)
#
# VERSION: 0.2
#
# LICENSE: GNU GPL v3 (http://www.gnu.org/licenses/gpl.html)
#
# OVERVIEW: PDFextract is a simple PDF extraction script based on Ghostscript/qpdf/cpdf.
# It provides a simple way to extract a page range from a PDF document and is meant
# to be used as a file manager script/addon (e.g. Nautilus script).
#
# FEATURES: - simple GUI based on YAD, an advanced Zenity fork.
# - preserves _all_ attributes of your original PDF file and does not compress
# embedded images further than they are.
# - can choose from three different backends: ghostscript, qpdf, cpdf
#
# DEPENDENCIES: ghostscript/qpdf/cpdf poppler-utils yad libnotify-bin
#
# You need to install at least one of the three backends supported by this script.
#
# - ghostscript, qpdf, poppler-utils, and libnotify-bin are available via
# the standard Ubuntu repositories
# - cpdf is a commercial CLI PDF toolkit that is free for personal use.
# It can be downloaded here: https://github.com/coherentgraphics/cpdf-binaries
# - yad can be installed from the webupd8 PPA with the following command:
# sudo add-apt-repository ppa:webupd8team/y-ppa-manager && apt-get update && apt-get install yad
#
# NOTES: Here is a quick comparison of the advantages and disadvantages of each backend:
#
# speed metadata preservation content preservation license
# ghostscript: -- ++ ++ open-source
# cpdf: - ++ ++ proprietary
# qpdf: ++ + ++ open-source
#
# Results might vary depending on the document and the version of the tool in question.
#
# INSTALLATION: https://askubuntu.com/a/236415
#
# This script was inspired by Kurt Pfeifle's PDF extraction script
# (http://www.linuxjournal.com/content/tech-tip-extract-pages-pdf)
#
# Originally posted on askubuntu
# (https://askubuntu.com/a/282453)
# Variables
DOCUMENT="$1"
BACKENDSELECTION="^qpdf!ghostscript!cpdf"
# Functions
check_input(){
if [[ -z "$1" ]]; then
notify "Error: No input file selected."
exit 1
elif [[ ! "$(file -ib "$1")" == *application/pdf* ]]; then
notify "Error: Not a valid PDF file."
exit 1
fi
}
check_deps () {
for i in "$@"; do
type "$i" > /dev/null 2>&1
if [[ "$?" != "0" ]]; then
MissingDeps+="$i"
fi
done
}
ghostscriptextract(){
gs -dFirstPage="$STARTPAGE "-dLastPage="$STOPPAGE" -sOutputFile="$OUTFILE" -dSAFER -dNOPAUSE -dBATCH -dPDFSETTING=/default -sDEVICE=pdfwrite -dCompressFonts=true -c \
".setpdfwrite << /EncodeColorImages true /DownsampleMonoImages false /SubsetFonts true /ASCII85EncodePages false /DefaultRenderingIntent /Default /ColorConversionStrategy \
/LeaveColorUnchanged /MonoImageDownsampleThreshold 1.5 /ColorACSImageDict << /VSamples [ 1 1 1 1 ] /HSamples [ 1 1 1 1 ] /QFactor 0.4 /Blend 1 >> /GrayACSImageDict \
<< /VSamples [ 1 1 1 1 ] /HSamples [ 1 1 1 1 ] /QFactor 0.4 /Blend 1 >> /PreserveOverprintSettings false /MonoImageResolution 300 /MonoImageFilter /FlateEncode \
/GrayImageResolution 300 /LockDistillerParams false /EncodeGrayImages true /MaxSubsetPCT 100 /GrayImageDict << /VSamples [ 1 1 1 1 ] /HSamples [ 1 1 1 1 ] /QFactor \
0.4 /Blend 1 >> /ColorImageFilter /FlateEncode /EmbedAllFonts true /UCRandBGInfo /Remove /AutoRotatePages /PageByPage /ColorImageResolution 300 /ColorImageDict << \
/VSamples [ 1 1 1 1 ] /HSamples [ 1 1 1 1 ] /QFactor 0.4 /Blend 1 >> /CompatibilityLevel 1.7 /EncodeMonoImages true /GrayImageDownsampleThreshold 1.5 \
/AutoFilterGrayImages false /GrayImageFilter /FlateEncode /DownsampleGrayImages false /AutoFilterColorImages false /DownsampleColorImages false /CompressPages true \
/ColorImageDownsampleThreshold 1.5 /PreserveHalftoneInfo false >> setdistillerparams" -f "$DOCUMENT"
}
cpdfextract(){
cpdf "$DOCUMENT" "$STARTPAGE-$STOPPAGE" -o "$OUTFILE"
}
qpdfextract(){
qpdf --linearize "$DOCUMENT" --pages "$DOCUMENT" "$STARTPAGE-$STOPPAGE" -- "$OUTFILE"
echo "$OUTFILE"
return 0 # even benign qpdf warnings produce error codes, so we suppress them
}
notify(){
echo "$1"
notify-send -i application-pdf "PDFextract" "$1"
}
dialog_warning(){
echo "$1"
yad --center --image dialog-warning \
--title "PDFExtract Warning" \
--text "$1" \
--button="Try again:0" \
--button="Exit:1"
[[ "$?" != "0" ]] && exit 0
}
dialog_settings(){
PAGECOUNT=$(pdfinfo "$DOCUMENT" | grep Pages | sed 's/[^0-9]*//') #determine page count
SETTINGS=($(\
yad --form --width 300 --center \
--window-icon application-pdf --image application-pdf \
--separator=" " --title="PDFextract"\
--text "Please choose the page range and backend"\
--field="Start:NUM" 1[!1..$PAGECOUNT[!1]] --field="End:NUM" $PAGECOUNT[!1..$PAGECOUNT[!1]] \
--field="Backend":CB "$BACKENDSELECTION" \
--button="gtk-ok:0" --button="gtk-cancel:1"\
))
SETTINGSRET="$?"
[[ "$SETTINGSRET" != "0" ]] && exit 1
STARTPAGE=$(printf %.0f ${SETTINGS[0]}) #round numbers and store array in variables
STOPPAGE=$(printf %.0f ${SETTINGS[1]})
BACKEND="${SETTINGS[2]}"
EXTRACTOR="${BACKEND}extract"
check_deps "$BACKEND"
if [[ -n "$MissingDeps" ]]; then
dialog_warning "Error, missing dependency: $MissingDeps"
unset MissingDeps
dialog_settings
return
fi
if [[ "$STARTPAGE" -gt "$STOPPAGE" ]]; then
dialog_warning "<b> Start page higher than stop page. </b>"
dialog_settings
return
fi
OUTFILE="${DOCUMENT%.pdf} (p${STARTPAGE}-p${STOPPAGE}).pdf"
}
extract_pages(){
$EXTRACTOR
EXTRACTORRET="$?"
if [[ "$EXTRACTORRET" = "0" ]]; then
notify "Pages $STARTPAGE to $STOPPAGE succesfully extracted."
else
notify "There has been an error. Please check the CLI output."
fi
}
# Main
check_input "$1"
dialog_settings
extract_pages
安装
请遵循Nautilus脚本的通用安装说明。确保仔细阅读脚本头，因为这将有助于阐明脚本的安装和使用。
部分页面-PDF Shuffler
总览
PDF-Shuffler是一个小型的python-gtk应用程序，可帮助用户使用交互式直观的图形界面来合并或拆分pdf文档以及旋转，裁剪和重新排列其页面。它是python-pyPdf的前端。
安装
sudo apt-get install pdfshuffler
用法
PDF-Shuffler可以裁剪和删除单个PDF页面。您可以使用它通过裁剪功能从文档甚至部分页面中提取页面范围：
页面元素-Inkscape
总览
Inkscape是一个非常强大的开源矢量图形编辑器。它支持多种不同格式，包括PDF文件。您可以使用它从PDF文件提取，修改和保存页面元素。
安装
sudo apt-get install inkscape
用法
1.）使用Inkscape打开您选择的PDF文件。将会出现一个导入对话框。选择要从中提取元素的页面。保留其他设置不变：
2.）在Inkscape中，单击并拖动以选择要提取的元素：
3.）用反转选择，!并用删除所选对象DELETE：
4.）通过使用+ + 访问“ 文档属性”对话框并选择“使文档适合图像”，将文档裁剪为其余对象：CTRLSHIFTD
5.）从文件 -> 另存为对话框将文档另存为PDF文件：
6.）如果裁剪后的文档中有位图/光栅图像，则可以在接下来出现的对话框中设置其DPI：
7.）如果执行了所有步骤，您将生成一个仅包含您选择的对象的真实PDF文件：
