If Payhawk's OCR tool is unable to extract information from an invoice, this can be due to security protections within the PDF file that prevent data from being copied.
You can run a quick test to determine if this is the case:
Open the PDF file on your computer.
Highlight a section of the text.
Copy the text.
Paste the text into a simple text application such as Notepad for Windows, or TextEdit for Mac.
If the pasted text looks like nonsense or random symbols, this means that the PDF file is protected. This active protection prevents Payhawk’s OCR tool from reading and extracting the data. In this case, you will need to manually enter the required data for the invoice.
Similarly, if you notice that the OCR tool has extracted incorrect information for any of the expense fields, enter the required data from the invoice manually.