Pdfcrowd is built around Webkit. Webkit is an open source HTML layout engine used in several popular browsers and ensures full HTML/CSS2 support.
We can't convert frameset documents, Flash and pages using a server-side session to identify the user, such as your web mailbox. We do support web pages protected by basic authentication though.
With the exception of the API, creating PDFs using the default settings is free and you don't need an account. If you want to customize created PDFs beyond the defaults you can sign up for a paid account.
It is simple, just add a simple Save to PDF link on your web site.
The API is available on any platform that supports HTTP. You can use either the REST API directly or use any of our API libraries. We support PHP, Java, Python, Ruby, and .NET.
The Domain License removes Pdfcrowd logo from PDFs created through the Save to PDF link. The Premium License lets you create customized PDFs online using the conversion forms on our web site or with the Save as PDF add-on.
No, neither of them covers access to the API. To use the API, please select from these options.