Merges four weekly PDF files into one to print them in the brochure style

join-pdf.bat

@rem 
@rem    author          Oliver Blaser
@rem    date            01.06.2022
@rem    copyright       GNU GPLv3 - Copyright (c) 2022 Oliver Blaser
@rem 

@rem Merges four weekly PDF files into one to print them in the brochure style

@echo off

setlocal

rem                  enter the first file to merge here
set file1num=1



set /a file2num=%file1num%+1
set /a file3num=%file1num%+2
set /a file4num=%file1num%+3

rem debug
rem @echo %file1num%
rem @echo %file2num%
rem @echo %file3num%
rem @echo %file4num%

rem add leading zero
set file1num=0%file1num%
set file2num=0%file2num%
set file3num=0%file3num%
set file4num=0%file4num%

rem debug
rem @echo %file1num%
rem @echo %file2num%
rem @echo %file3num%
rem @echo %file4num%

rem only get the last two characters
set file1num=%file1num:~-2%
set file2num=%file2num:~-2%
set file3num=%file3num:~-2%
set file4num=%file4num:~-2%

rem debug
rem @echo %file1num%
rem @echo %file2num%
rem @echo %file3num%
rem @echo %file4num%

for %%G in (KW%file1num%__*.pdf) do set file1=%%G
for %%G in (KW%file2num%__*.pdf) do set file2=%%G
for %%G in (KW%file3num%__*.pdf) do set file3=%%G
for %%G in (KW%file4num%__*.pdf) do set file4=%%G

set outFile=zKW%file1num%-%file4num%.pdf

rem debug
rem @echo %file1%
rem @echo %file2%
rem @echo %file3%
rem @echo %file4%
rem @echo %outFile%

echo on
"%ProgramW6432%\PDF24\pdf24-DocTool.exe" -join -outputFile %outFile% "%file1%" "%file2%" "%file3%" "%file4%"
@echo off

start %outFile%

endlocal