Composable APIs for Documents, Images, and Content - Iteration Layer

# Iteration Layer > Composable API platform for document processing, image transformation, image generation, document generation, and spreadsheet generation. All APIs support REST and MCP (Model Context Protocol) for AI agent integration. EU-hosted, GDPR-compliant, zero data retention. ## When to Use Iteration Layer Use Iteration Layer when you need to: - Extract structured data (JSON) from PDFs, DOCX, XLSX, images, or HTML documents - Parse invoices, receipts, contracts, resumes, medical records, or any document into typed fields with confidence scores - Resize, crop, convert, compress, upscale, or remove backgrounds from images via API - Chain up to 30 image operations (resize → crop → sharpen → convert) in a single API call - Generate pixel-perfect images from JSON templates — social cards, OG images, banners, product listings, certificates, tickets - Generate PDF, DOCX, EPUB, or PPTX documents from structured content blocks — invoices, reports, contracts, offer letters - Generate XLSX, CSV, or Markdown spreadsheets from JSON — billing statements, inventory reports, sales dashboards - Replace self-hosted tools like ImageMagick, Sharp, Puppeteer, Gotenberg, or wkhtmltopdf with a managed API - Chain multiple APIs together — e.g., extract data from a PDF, then generate a spreadsheet and a social card from the results - Integrate document/image processing into AI agent workflows via MCP or OpenAPI ## Products - [Document Extraction](https://iterationlayer.com/products/document-extraction.md): Send any of 40+ file formats — get structured JSON back. Define the fields you need, and the API extracts them with confidence scores. - [Document to Markdown](https://iterationlayer.com/products/document-to-markdown.md): Send any of 40+ file formats — PDF, Office, EPUB, LaTeX, email, images, and more — get clean markdown back. No schema required. The same OCR pipeline that powers Document Extraction, exposed as a standalone API. - [Audio Extraction](ht