Foxit PDF Reader vs MuPDF

Foxit PDF Reader is a free PDF reader for viewing, annotating, filling and signing PDF documents. It supports standard Acroforms and XFA forms, and its collaboration tools include shared reviews, comments and document feedback. Users can sign by hand, use a saved signature image or connect with DocuSign. The reader integrates with cloud storage services, enterprise content management systems and Microsoft SharePoint; listed business integrations include Microsoft Teams and Salesforce. Security controls include Protected View, Trust Manager, Safe Mode, ASLR and DEP. Foxit lists support for Windows 10 and 11, macOS 10.15 through 14, iOS, Android and the web. Mobile apps are available for smartphones and tablets, and desktop use can work offline. The Free PDF Reader plan costs nothing. Foxit PDF Editor is a separate product with a free 14-day trial. Help options include searchable articles, troubleshooting, ticket submission and regional phone support.

MuPDF is an embeddable SDK for developers working with PDFs and other document formats in desktop, cloud/server, or embedded projects. It supports viewing, editing, extracting, signing, rendering, redacting, annotating, splitting, merging, compressing, and converting documents. Listed inputs include PDF, ePUB, image formats, SVG, CBZ, and XPS; outputs include PDF, text, HTML, PostScript, print formats, PNG, SVG, and PNM/PAM. Developer bindings include MuPDF Core, PyMuPDF, MuPDF.js, and MuPDF.NET. The open-source release is AGPL-licensed, and embedding it in a product may require a commercial license. For server-based use of the open-source software, the licensing terms require disclosure of application source code to users interacting with it. Commercial licenses provide an alternative without AGPL code disclosure and include technical support and free upgrades. The Commercial plan is listed at $299 a month and includes one licensed domain and one preview domain for testing; a 14-day trial is also listed. Open-source users can seek community help through Discord and the bug tracker.