@echo off
setlocal enabledelayedexpansion

if "%~1"=="" (
    echo Drag and drop a finalized PDF file onto this tool.
    pause
    exit /b
)

set "FILE=%~1"
set "NAME=%~nx1"
set "SIZE=%~z1"

for /f "tokens=1" %%A in ('certutil -hashfile "%FILE%" MD5 ^| findstr /r /v "hash CertUtil"') do (
    set "HASH=%%A"
)

set "LINE=%NAME%: %SIZE% bytes, checksum: %HASH% (MD5)"

echo.
echo ===================== IMPORTANT =====================
echo Only replace the checksum line in DSpace.
echo Do NOT overwrite the full provenance field.
echo.
echo Replace the line AFTER:
echo   "No. of bitstreams: 1"
echo And BEFORE:
echo   "Previous issue date"
echo =====================================================
echo.

echo Copy this line into DSpace:
echo.
echo %LINE%
echo.

:: Copy to clipboard
echo %LINE% | clip

echo [Copied to clipboard]
echo.
pause