HTML2PDF Rocket vs PdfGen

HTML2PDF Rocket is a cloud service that converts a URL or submitted HTML into a PDF or image file. It can execute JavaScript while rendering pages, and its API lists JPG, PNG, BMP, and SVG as image outputs. PDF settings include page size, orientation, margins, grayscale, forms, print stylesheets, and headers and footers. The service is positioned for generating downloadable reports, brochures, and invoices from webpages. Code examples are provided for C#, JavaScript, PHP, Java, and Android, with links to examples for Python, Node.js, Go, and Swift. URL conversion supports SSL, HTTPS pages, and basic authentication. The maker says conversions taking over 30 seconds, or input or output files larger than 6 Mb, need batch or asynchronous parameters. The Free Plan costs nothing and includes 200 credits per month with a 5 Mb per-PDF limit; large PDFs use credits based on network traffic. BOOTSTRAPPED costs $5 a month and includes 500 credits and a 50 Mb per-PDF limit. Free generation stops when credit use reaches 100%, while paid accounts may continue at a slower generation rate.

PdfGen is a cloud platform for generating PDFs from HTML templates, including invoices, reports, certificates, contracts, guides, and proposals. It provides a code editor powered by Monaco, a rich text editor, and live PDF preview. Templates can use plain text, structured object, or tabular variables, and variable definitions can generate data-entry forms. For rendering, users can choose iText for metadata-rich output or Puppeteer/Chromium for web-to-PDF conversion. Its REST API manages templates, variables, and document generation; an MCP server connects with coding agents including Cursor and Claude Desktop. TypeScript and Python client libraries are available. Listed integrations include GitHub template sync, Google Fonts, Stripe, and AI providers Anthropic Claude, OpenRouter, MiniMax, and DeepSeek. Organizations offer Admin and User roles, email invitations, and shared templates, variables, and documents. The site says generation runs in isolated server-side environments, stored content is encrypted at rest, API keys are SHA-256 hashed, and data in transit uses TLS. Plans set monthly document allowances; extra documents use plan-specific credits. Pricing ranges from free to €25 a month.