Marking an invoice as paid is more than adding a stamp. Preserving the original document, ensuring traceability and producing a dedicated paid version are important parts of a reliable invoicing workflow.
Issuing an invoice is only one step.
Its lifecycle continues until payment is received, and sometimes requires generating a paid invoice.
Yet this step is often overlooked.
Most invoicing solutions focus on creating invoices.
Marking them as paid is sometimes missing, limited, or requires manually editing the existing document.
However, this is a common operation requested by both businesses and their customers.
An issued invoice is a document.
A paid invoice is another document.
Editing the original PDF can make it more difficult to preserve an accurate record of the document as it was issued.
Generating a separate version clearly distinguishes the issued invoice from the paid invoice.
Manually marking a single invoice as paid is usually manageable.
Once dozens of invoices need to be processed, the time required increases quickly.
The process should therefore remain fast, repeatable and reliable.
A paid invoice does not change the accounting information contained in the original document.
It simply adds explicit information confirming that payment has been received.
Given the same inputs, the result should always be identical.
This approach reduces errors and improves traceability.
A good practice is to always keep:
Each document keeps its own purpose and history.
As with other technical systems, the objective is not to introduce unnecessary complexity.
It is to make a common operation simple, repeatable and predictable.
Paid invoices are often treated as a minor detail.
Yet, when they become part of a recurring workflow, using a dedicated tool saves time while maintaining clear traceability.
This approach is used in Invoice Stamper, a tool designed to generate paid invoices quickly without modifying the original PDF documents.