@echo off
REM 1. 下载并安装命令行工具 PDFtk Server
REM https://www.pdflabs.com/tools/pdftk-server/
REM 2. 请根据自己电脑实际情况设置该路径
set "path=C:\Program Files (x86)\PDFtk Server\bin;%path%"
REM 3. 指定待处理的pdf文件所在的文件夹
set "TargetFolder=C:\Users\Administrator\Desktop\PDF"

set "SubFolderPDF=LastPage"
set "SubFolderPic=PDF2Pic"

cd /d "%TargetFolder%"
md "%SubFolderPDF%" 2>nul
md "%SubFolderPic%" 2>nul
for /f "delims=" %%i in ('dir /b /a-d *.pdf') do (
    echo %%i
    pdftk.exe "%%i" cat r1 output "%SubFolderPDF%\%%i"
)

REM 1、下载并安装 Ghostscript 这个命令行工具
REM https://www.ghostscript.com/releases/gsdnld.html
REM 2、根据自己电脑实际安装路径设置以下临时环境变量
set "path=C:\Program Files\Ghostscript\gs10.00.0\bin;%path%"

for /f "delims=" %%i in ('dir /b /a-d "%SubFolderPDF%\*.pdf"') do (
    echo %SubFolderPDF%\%%i
    gswin64c.exe -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dGridFitTT=2 -dUseCropBox -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r300 -sDEVICE=jpeg -dJPEGQ=100 -sOutputFile="%SubFolderPic%\%%~ni.jpg" "%SubFolderPDF%\%%i"
)
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