PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
wkhtmltopdf - wkhtmltopdf is an open source (LGPL) command line tools to render HTML into PDF and various image...
Anvil PDF Filling API - The easiest way to programmatically populate any PDF
KDAN Mobile PDF Reader - PDF Reader is the one app you can rely on when you need a portable solution to work with PDFs.
PDF my URL - PDFmyURL turns any webpage or even complete website into PDF. Use our rest API in PHP, .NET, Ruby, Perl or any other programming language. Or convert webpages or even full websites directly in the browser!
PlutoPDF - A URL to PDF converter wrapped behind a simple API.