PDFWix is a free online PDF toolkit that lets users merge, split, compress, convert, edit, sign, and secure PDF files directly in their browser. It offers 24+ PDF tools with no watermarks, no registration, and no daily usage limits. Most files are processed locally for enhanced privacy and security. Compatible with Windows, macOS, Linux, Android, iPhone, and Chromebook, PDFWix provides a fast, simple, and privacy-focused solution for everyday PDF tasks.