> For the complete documentation index, see [llms.txt](https://docs.uaepass.ae/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.uaepass.ae/feature-guides/signature-integration-guide/hash-signing.md).

# Hash Signing

The purpose of this document is to share the details and guidelines to perform the Digital Hash Signing of PDF Documents using the UAEPASS digital identity issued to individual and/or organizations.

### Here are the articles in this Section:

{% content-ref url="/pages/-MkkRcSpKEo07S1dhSG3" %}
[Introduction](/feature-guides/signature-integration-guide/hash-signing/introduction.md)
{% endcontent-ref %}

{% content-ref url="/pages/xBVVXrw0IdVlilmjhNv9" %}
[Hash Signing (Single Document)](/feature-guides/signature-integration-guide/hash-signing/hash-signing-single-document.md)
{% endcontent-ref %}

## **Glossary**

| **Term** | **Description**                 |
| -------- | ------------------------------- |
| GSB      | Government Service Bus          |
| SOAP     | Simple Object Access Protocol   |
| REST     | Representational state transfer |