LightPDF

LightPDF Desktop is a cross-platform PDF editor and converter available for both Windows and macOS. It offers a sleek and beginner-friendly interface, supporting key functions like PDF editing, annotation, file conversion, form filling, page management, OCR, and digital signing—all with high performance and stability.

One of LightPDF’s standout features is its built-in AI-powered assistant, which can summarize, explain, or answer questions based on PDF content. This makes it ideal for researchers, students, and office professionals who need to process large or complex documents quickly.

LightPDF also supports batch conversion between PDF and Office formats, compresses files without quality loss, and ensures security with local file processing. A free version is available with essential tools, while premium features unlock enhanced editing and AI support.