HTML2PDF Rocket vs pdflayer

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.

pdflayer is a cloud REST API that converts HTML or HTTP URLs into PDF documents. It accepts standard URLs and raw HTML, with raw HTML conversion available through HTTP POST. Requests can use GET or POST, though some features require POST. The rendering engine can handle HTML, CSS, JavaScript, XML, and SVG, and customization options include dimensions, margins, page numbers, custom CSS, encryption, viewport, delay, headers, footers, and watermarks. The maker says the API works with any programming language, citing PHP, Python, Ruby, jQuery.ajax, and Java. Generated PDFs are stored on a CDN and can be retrieved within milliseconds, according to the maker. Users can track usage daily or monthly and receive notices when usage is running low. The free plan provides 100 API requests per month for non-commercial use; it lists no encryption feature. Paid plans start at $9.99/mo, include commercial use, and list 256-bit HTTPS encryption. Paid subscriptions include unlimited, prioritized technical support. pdflayer is based in Vienna, Austria.