PDF documents such as ebooks, statements, brochures, and reports often require headers, footers, and page numbers. More complex documents may need title page layouts or headers to vary from page to page.  Fortunately, it’s easy to make these complex documents with DocRaptor’s HTML to PDF API and their PHP library. You may be familiar with some of the open-source HTML to PDF libraries, but they are almost all based on browser engines and cannot create the complex PDFs described above or even some of the basic PDF pages without hacks and polyfills. This tutorial will walk you through DocRaptor’s simple setup and show some basic PDF conversion examples. First, add docraptor to your Gemfile or require the docraptor gem. Then, instantiate the agent and authenticate with your DocRaptor API key.…