Convert a PDF to JPG image(s) optimized for quick transfer via fax (specifically Fritz!Box built-in fax)

pdf2jpg4fax.bat

@echo off
setlocal enabledelayedexpansion

:top
if (%1) == () goto end

echo Extracting single page images from "%1"...
"imagemagick\convert.exe" -density 150 %1 "%~dpn1.fax.bmp"

for %%f in (.\*.fax*.bmp) do (
    echo Post-processing "%%~dpnf"...
    "imagemagick\convert.exe" "%%f" -colorspace gray ^( +clone -blur 5,5 ^) -compose Divide_Src -composite -normalize -threshold 80%% "%%~dpnf.jpg"
    del "%%f"
)

shift
goto top
:end