> ## Documentation Index > Fetch the complete documentation index at: https://docs.pdfnoodle.com/llms.txt > Use this file to discover all available pages before exploring further. # Overview > Welcome to PDF Noodle API Reference # API Reference Welcome to the PDF Noodle API Reference. Here you'll find everything you need to integrate PDF generation into your application. ## Getting Started Learn how to authenticate your API requests Understand API rate limits and usage ## PDF Generation Generate PDFs using reusable templates Convert HTML directly to PDF ## PDF Tools Check the status of async tool operations Get presigned URLs for uploading and downloading PDFs Combine multiple PDF files into one document Split a PDF into parts by ranges or intervals Reduce PDF file size with configurable compression Convert Markdown content into styled PDFs Update title, author, and other PDF metadata ## Templates Create new templates using AI based on text prompts Retrieve all templates available for your company Extract variable schema from templates Retrieve complete template details and check creation status