Compare PDFik vs. RAD PDF

PDFik is an async job API that renders URLs or raw HTML to PDF on sandboxed headless Chromium. POST a page, get a job ID back in milliseconds, and a signed webhook (HMAC-SHA256 over the raw body) fires when the file is ready — polling and direct download endpoints exist too. Failed webhook deliveries are retried with back-off and then dead-lettered rather than dropped. The tooling is developer-first: typed SDKs for JavaScript/TypeScript, Python and Java; a public OpenAPI 3.1 spec you can feed to any generator; and an open-source, statically-linked CLI whose wkhtmltopdf compatibility mode accepts wkhtmltopdf's own flags — each one mapped, accepted with a warning, or refused with a reason, never silently ignored. A free test mode runs the entire pipeline without touching quota, so CI can verify signatures and download flows for free. Free plan: 100 PDFs / 0.5 GB per month, card verified but never charged. Paid plans from $29/month, 99.5% SLA.

Install-free PDF editing, form filling, redaction, signing, viewing, and more on your website with RAD PDF! Packaged as an easy to use library / WebControl (compatible with .NET 3.5+, .NET Core, and .NET 5+), RAD PDF can be used with just about any flavor of ASP.NET including MVC, Razor, Blazor, WebForms, and more. RAD PDF is compatible with 99% of internet browsers, including those on Linux, Mac OS X, Microsoft Windows, and mobile. No plugins. No Adobe Reader. RAD PDF is more than a PDF to HTML converter. It natively supports all the most common PDF features including annotations, bookmarks, form fields, page labels, and more. With advanced PDF options, RAD PDF allows you to selectively enable and disable features not available with Adobe Acrobat Reader, like protecting a PDF from being downloaded while still viewable online. RAD PDF users can use PDF form fields directly from the web browser by enabling PDF form filling and PDF form saving without having to install any software. Integrating directly with ASP.NET, RAD PDF allows your web application to capture input data, build custom workflows, and provide an intuitive graphical user interface (GUI) for just about any online PDF interaction imaginable!