Suggestion for save method

[dam1r89]

The following behavior can be confusing:

$output = '/tmp/image'; // Important not to have extension.
$pdf = new Pdf($pathToPdf);
$pdf->save($output);

info(file_exists($output) ? 'Yes it exists' : 'no it does not exist'); // prints: no it does not exist

You can get the paths from the method return, but when generating the screenshot of a single page I would expect to be saved on an exact location that was passed as an argument.

Use case: when we don't care about output because it is just a temporary step before it is uploaded to the remote storage.

[patinthehat]

@dam1r89 You make an interesting point. We'd be happy to review a PR that updates the behavior. Thanks! 👍