Revision-proof means that the final data created can no longer be changed. This is the case as long as you download all invoices as PDF and e.g. print them or archive them on a data carrier (CD/DVD). You probably file copies of the invoices anyway and/or hand them over to your accountant/tax advisor.

PamBill offers the following options:

• Download all stored data (settings, invoices, customers, etc.)
• Download all invoice information as CSV file (import to other system possible)
• Download all customer information as CSV file

Invoices created in PamBill are therefore not customizable once the "Paid" payment status is selected. This prevents subsequent modification of the invoice. You can easily export all invoice and customer data as a CSV file for further processing in another application, if necessary.

However, the liability for compliance with the auditability of the accounting is the sole responsibility of the respective business owner.