If you want to be able to preview your invoices as PDFs (useful if you want to print them out with a separate page for each invoice), you will need an additional library of scripts called HTML2PS. You can download it here. These scripts were not included in the standard component installation, because they take up a lot of disk space, and you only need them if you really need to print PDF versions of your invoices. There may also be security implications when using this library (see below).

Create the following folder on your website:

administrator/components/com_netinvoice/pdfwriter/

...and extract the contents of the zip file you downloaded into that folder. The PDF Preview button will then become available on the invoice list in the Administration area of the component. If you would prefer to run html2ps/pdf from the front-end folder (ie. components/com_netinvoice/pdfwriter/), you can do so from version 1.0.2 (RC3) onwards (eg. if you have strict access rules set up in your administrator folder).

Please Note: The default HTML2PS library as supplied on the tufat website, includes sample scripts which are not recommended for publishing on a live website - they could easily be used by hackers and either hijacked (other people using your server resources for their own purposes), or used as the basis for a distributed denial of service (DDoS) attack.  The zip file provided on this site has had these sample files removed for improved security. However, if you choose to use this script - whether downloaded from here or not - you do so entirely at your own risk. We have not thoroughly checked the security of each file in this large library - there may be security holes which could leave your website open to abuse. As this library is not authored by us, we have no direct control over the content or behaviour of the PDF production feature.

This is NOT an nBill extension and cannot be installed using the nBill extension installer, nor the Mambo or Joomla installer. You have to physically copy the files into a folder as described above.