Download PDFix Free

Yes — PDFix Desktop and PDFix SDK are fully featured in the free version. No license key, no registration, no credit card, no time limit. Every feature available in Pro and Enterprise works in the free download- auto-tagging, batch processing, validation, remediation, SDK automation. The only limitation is that documents saved with the free version may contain redacted content and carry a watermark. Purchase a license to remove the watermark. See pricing →

Yes. PDFix Desktop 2.5.3 provides separate downloads for Mac Intel (x86_64) and Mac Apple Silicon (arm64) — covering M1, M2, and M3 chips. Both require macOS 11 or later. Download the correct version for your chip – you can check by clicking the Apple menu → About This Mac.

Yes. PDFix Desktop supports Ubuntu 20.04+ and Red Hat 8.4+. PDFix SDK supports Linux x86_64 and aarch64. This makes PDFix one of the very few PDF accessibility tools with native Linux support – most competitors are Windows-only or web-based SaaS. The Linux SDK packages are available for Python, .NET, Node.js, Java, and C++.

No license key is required to download and use PDFix. All features work immediately – auto-tagging, AI-powered accessibility features, batch processing, validation, remediation. A license key is only needed to remove the watermark that appears on saved documents. See pricing →

To ensure accurate validation results, it’s essential to have Java installed on your computer. You can download Java here.

Java (version 8 or newer) is required for the integrated veraPDF validation feature inside PDFix Desktop. The simplest option is to download Java from java.com. Java is not required for other PDFix features like manual tagging, auto-tagging, or PDF conversion.

The free PDFix download includes all features — there is no feature restriction between free and paid versions. You get full WCAG 2.1, WCAG 2.2, PDF/UA (ISO 14289) validation, AI auto-tagging, manual remediation, batch processing – same for SDK. The only difference is a watermark on documents saved with the free version. 

PDFix Desktop is a desktop application for accessibility specialists & compliance teams. PDFix SDK is a developer library for engineering teams who want to automate PDF accessibility – integrating validation, auto-tagging, and AI-powered remediation into applications or document pipelines using Python, C#, Java, C++, or Node.js. Both support the same compliance standards, both are fully featured in the free download, and both apply a watermark to saved documents until a license is purchased.