API Documentation

Transform your document workflow with our powerful API. Start with 50 free operations daily, scale as you grow.

Quick Start View Pricing 
curl -X POST \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"format": "ubl2.1", "document": "base64_content"}' \
  https://api.pdfubl.com/v1/convert

Quick Start

Get started with our API in three simple steps:

  1. Sign up for an API key
  2. Install your preferred client library
  3. Make your first API call
cURL
Python
JavaScript
curl -X POST \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"format": "ubl2.1", "document": "base64_content"}' \
  https://api.pdfubl.com/v1/convert

Authentication

Stable

All API requests require authentication using an API key. You can obtain your API key from your dashboard after signing up.

Authorization: Bearer YOUR_API_KEY

Integration Options

API REST Integration

Direct REST API access with comprehensive endpoints for all document operations.

SAP ERP Connect

Seamless integration with SAP ERP systems for automated document processing.

Excel Bulk Processing

Convert multiple documents using Excel automation for batch processing.

SharePoint Document Hub

Direct integration with SharePoint for document management and conversion.

Email Auto Convert

Automatic document conversion through email attachments with instant processing.

Rate Limits

Free Tier

50

Daily conversions

Free Tier

50

Daily validations

Free Tier

50

PDF transforms

Need higher limits? Check out our flexible pricing plans for increased capacity.

View Plans →

Document Conversion

POST

Convert Document

Convert documents between different formats with support for various standards.

Endpoint

/v1/convert

Request Body

{
  "format": "ubl2.1",
  "target_format": "zugferd2.1",
  "document": "base64_encoded_content"
}

Response

{
  "success": true,
  "converted_document": "base64_encoded_content",
  "format": "zugferd2.1"
}
Rate Limit: 50 requests/day (Free Tier)

Client Libraries

Python

pip install pdfubl
Coming Soon

Enterprise Support

Get priority support, custom integrations, and dedicated solutions for your business.

Contact Enterprise Sales