# Document Uris

1. documentUris id: 
   1. Set an id with no space between elements. Example: 37283719273
   2. Make sure to use a unique documentID: Multiple documents in the same process can’t have the same ID. The documentID only has to be unique in the current process.
2. type:
   1. Document type, uri and ID help you identify the document after signing. “Signature” is set on default but you can also different terms like “contract”

{% hint style="danger" %}
Only the PDF/A format is allowed for QES. The requirement to have a valid and standard conform PDF (PDF/A) comes from our signing infrastructure.
{% endhint %}

We can recommend these converters:

* <https://www.ghostscript.com/>
* <https://github.com/matteosecli/pdf2archive>
* <https://verapdf.org/>


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