Blog
Guides, tutorials, and real-world workflows for composable document and image processing.
Document Generation vs Gotenberg: Self-Hosted Docker or Managed API?
Gotenberg runs Chromium and LibreOffice in Docker for PDF generation. Iteration Layer builds documents from structured content — no containers to manage.
Dynamic OG Images That Match Every Page — Generate Them with an API
Generate unique Open Graph images for every page on your site. One API call per image, no headless browser.
Extract Clean Article Text from Any Document — No Boilerplate, No Noise
Pull the actual article content from PDFs, Word docs, and web pages. No headers, no footers, no navigation.
Image Optimization for the Web: The Definitive Guide
The complete guide to optimizing images for web performance. Formats, compression, responsive images, and automation.
HTML to Image in Seconds: The Developer's Complete API Guide
Generate images from structured data instead of HTML. Faster, simpler, and more predictable than headless browsers.
Extract Structured Data from Any PDF in 3 Lines of Code
Define a schema, send a PDF, get structured JSON with confidence scores. No regex, no templates, no training.
Best Document Generation APIs in 2026
A developer's guide to document generation APIs — from HTML-to-PDF engines to structured content models. What each tool does, where it fits, and what it costs.
The Complete Guide to Programmatic Image Generation
From Puppeteer to layer-based APIs — how to generate images programmatically at scale. Methods, patterns, and code.
The Complete Guide to Document Parsing in 2026
From regex to AI extraction — the complete guide to parsing documents programmatically. Methods, tools, and code examples.
Chain 30 Image Operations in a Single API Request — No Infrastructure Required
Resize, crop, convert, sharpen, and compress in one API call. Up to 30 operations chained sequentially. No servers to manage.
Why We Built Iteration Layer
Content processing is a mess of duct-taped tools. We built composable APIs that cover the full lifecycle: parse documents, transform images, render visuals.