conversion rewrite

function convert-file($source, $destination)
{
    try{

    $i = [System.Drawing.Image]::FromFile($File.FullName)
    $i.Save("$t","$IMGType")
    } catch{ Write-Host "Errored on converting $file.fullname"
    } finally {
    }
}
function cleanfile($oldfile, $newfile){
    if( Test-Path  -Path $newfile){
    Remove-Item $oldfile
    }
}

ForEach ($File in $Files) {
    try{
    $old = join-path $File.DirectoryName $File.BaseName
    $new = $old+".$FTypeEnd"
    convert-file -source $old -destination $new
    cleanfile -oldfile $old -newfile $new
    }   catch   {
    log-functionhere -message "Error on $file.fullname"
    } finally{}
}