There are three types of PDF documents that can be generated in DJ-Catalog2: vat invoice, proforma invoice, and the waybill. Those documents all look similar and contain a summary of the order, for example, seller information customer information, list of purchased products, date of sale, etc.

The difference comes, of course, from the purpose of those documents and at what occasion they are used. For example, by default Proforma invoice is delivered before the customer makes the payment, VAT invoice after making the payment, whereas the Waybill is not meant for the customer but used internally in the company.

TCPDF library ver. 6.2+ has to be installed. You need to install it separately and you can find it here or install using the Install from web option.

In the component settings, the Cart tab, you may enable/disable invoices, select whether they should be automatically sent to the customer, select the format of an invoice number and edit the "Seller" part of the invoice.

All three types of documents can also be accessed from the list of orders page in the back-end:

In case you needed to customize the appearance of either of those three PDF documents, you can do that in your own DJ-Catalog2 theme. Once you create it, you will need to make a copy of the original layout files for PDF documents and customize them in your theme. The original files can be found in the following directory: