REM convert_syslinux.bat

@echo off

REM Place this file in the directory where the files to be converted are located. 

REM Drag and drop single or multiple 640x480 (or with the same aspect ratio) .png or .bmp images into this batch file to convert them to Syslinux compatible splash images with ImageMagick. The converted file(s) will have "_splash" appended after the name and the extension(s) changed to png. This script works for files only (it will not work for folders). Tested on Vista and WinXP with ImageMagick portable installed to C:\Utilities folder.

REM "%~dp0" changes the working directory to the current directory (where this batch file is located)
REM "%~n1" is the filename minus the extension

CD "%~dp0"

echo.
echo Current directory is: "%~dp0"
echo.

:Loop
IF [%1]==[] goto continue
C:\Utilities\ImageMagick\convert -resize 640x480 -colors 14 -depth 16 %1 "%~n1"_splash.png
echo "%~nx1 converted to png"
SHIFT
goto Loop
:continue

echo.
echo "All conversions completed"
echo.

@pause