apilayer pdflayer vs Vector Express v2.0

pdflayer, part of the apilayer family of micro-APIs, renders a target URL or raw HTML/CSS/JS into a downloadable PDF via a single GET or POST call authenticated with an access_key query parameter. It shares apilayer.com's account and billing infrastructure with sibling products like weatherstack and currencylayer, and supports options like headers, footers, watermarks, and page numbering.

Vector Express chains together open-source conversion engines (Ghostscript, UniConvertor, libcdr, hp2xx, and others) to translate vector graphics across CAD and illustration formats including AI, DWG, DXF, EPS, and SVG. The core API is free under shared rate limits, while a pay-as-you-go tier removes those limits and raises the file-size ceiling; it sends no CORS headers, so browser calls need a server-side proxy.