Drag and drop batch webp convert to png using dwebp on Windows

dwebp.bat

@echo off

:: Check if the number of arguments is less than 2
if "%~1" == "" (
    echo Usage: %0 "Path to dwebp.exe" [Input files/directories...]
    exit /b
)

:: Set the path to dwebp.exe
set dwebp_path="%~1"
shift

:: Loop through all input arguments
:process_arg
if "%~1" == "" (
    goto :eof
)

:: Check if the argument is a directory
if exist "%~1\" (
    :: If it's a directory, convert all WebP files inside the directory to PNG
    for %%F in ("%~1\*.webp") do (
        echo Converting "%%~F" to "%%~dpnF.png"
        %dwebp_path% "%%~F" -o "%%~dpnF.png"
    )
) else (
    :: If it's a file, check if it's a WebP file and convert it to PNG
    if /i "%~x1" == ".webp" (
        echo Converting "%~1" to "%~dpn1.png"
        %dwebp_path% "%~1" -o "%~dpn1.png"
    ) else (
        echo Skipping non-WebP file: "%~1"
    )
)

:: Shift to the next argument
shift
goto :process_arg