# Convert PDF invoices to Twinfield UBL

Do you receive purchase invoices as PDF, DOCX, photo or scan and want to process them as smoothly as invoices that already arrive as UBL? SnelUBL converts the source invoice into a valid UBL file that you can import via the UBL import function of Twinfield.

## The problem

Many suppliers still send loose PDFs without a UBL attachment. That means manual entry or relying on recognition that may not be correct line by line. SnelUBL fills this gap by creating structured UBL before the invoice is processed in Twinfield.

## How it works with SnelUBL

1. Upload the PDF, DOCX or image invoice in SnelUBL.
2. Review the recognized data in the result viewer.
3. Download the UBL file and import it via the UBL import function of Twinfield.

## Why no subscription

SnelUBL is pay-as-you-go: EUR 0.35 per conversion, without fixed monthly costs. This is useful when you only need to convert a limited number of PDF invoices per month alongside the invoices Twinfield already processes.

## Frequently asked questions

### Does SnelUBL replace recognition in Twinfield?

No. SnelUBL is for PDF, DOCX or image invoices where you want to create UBL yourself before processing them in Twinfield.

### Does this also work for foreign suppliers?

Yes, as long as the invoice contains the required data such as amount, VAT and supplier details, SnelUBL can convert it to UBL.

## Related articles

- [What is UBL?](/en/ubl.html)
- [Result viewer and UBL review](/en/docs/result-viewer-ubl-review.html)
- [Go2UBL alternative](/en/go2ubl-alternative.html)