TCPDF Fileinformations

I just noticed, when I save the pdf in different directory, the File array informations are not correct.

As example I save my pdf to 'images/' and the var name is 'cf_pdf_file' and I output the array

<?php 
echo $form->files['cf_pdf_file']['name'] . '<br/>';
echo $form->files['cf_pdf_file']['path']  . '<br/>';
echo $form->files['cf_pdf_file']['size']  . '<br/>';
echo $form->files['cf_pdf_file']['link']  . '<br/>';
?>

I get following:

Wettbewerb_de_20140625151757.pdf
images\Wettbewerb_de_20140625151757.pdf
0
http://dev.mydomain.xx/components/com_chronoforms/pdf/Wettbewerb_de/Wettbewerb_de_20140625151757.pdf

The link is incorrect!!!

And as a second problem I noticed I can't attache it to an email with "cf_pdf_file" ... neither with default email-event and GH email-event.