> For the complete documentation index, see [llms.txt](https://docs.signius.eu/api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.signius.eu/api/professional-headless-pdf/professional-headless-pdf.md).

# PROFESSIONAL HEADLESS PDF

## Introduction

This documentation explains how to use the SIGNIUS PROFESSIONAL HEADLESS PDF API.<br>

**The API allows you to integrate document signing into your application, keeping the SIGNIUS Portal hidden from the end-user.**

Communication is handled via port 8970 using an API key or a generated certificate (please contact our team to request it).

To enable PROFESSIONAL HEADLESS PDF API functionality, you must first initialize user creation via our PROFESSIONAL RA API (unless the user has already been created through this API).

## **The following methods steps should be performed:**

* (RA) Create a new user
* (RA) Initialize identity verification
* (RA) Get the list of verification methods for user
* (RA) Check if user needs to be verified
* (RA) Delete user (**optional**)

For more information, visit <https://docs.signius.eu/api/ra>

## &#x20;This documentation shows how to:

* Create folder
* Upload a document
* Submit a document for signing
* Create Session
* Signing hash via SMS
* Download the signed document
* Delete a document
* Delete a folder