Compare PREP vs. RAD PDF

PREP by Continual Engine is an PDF remediation tool designed for organizations that need consistent output at scale. AI drives up to 95% auto-tagging and can reduce manual effort by up to 80%, while a side-by-side screen reader preview gives reviewers a practical way to validate accessibility before publishing. Compliance is central to PREP, with support for WCAG 2.2 AA, PDF/UA, ADA Title II, and Section 508. The platform integrates with existing workflows via REST API and LMS connectors. Security and privacy needs are addressed through SOC 2 Type II certification, GDPR alignment, and encrypted data handling across the pipeline.

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!