PDF file name in email

null@example.com (cristiart) — Sun, 03 Nov 2013 18:59:40 +0000

line 972 in pdf_report.inc I think the appropriate file name should be:

 $fname = $dir.'/'.$this->formData['document_number'].'.pdf';

This way it should be easier for customer and you to identify orders and invoices.

FrontAccounting forum — PDF file name in email