#PDF Annotation
Notebook
Zoho Notebook is a comprehensive cross-platform note-taking application that supports text, voice, handwriting, images, and PDF annotations. It offers intelligent note organization, cloud synchronization, and team collaboration features, and is available for free.
PDF Expert
PDF Expert is a fast, lightweight, and powerful PDF editor for Mac. It offers a smooth reading experience with support for text editing, annotation, form filling, and electronic signatures, making PDF handling simple and efficient.
PDF Reader Pro
PDF Reader Pro is a powerful professional PDF reading and editing tool that supports viewing, editing, merging, and converting PDF documents. It offers advanced features such as OCR text recognition, electronic signatures, and annotation markup, making it an efficient office assistant for macOS.
Skim
Skim is a lightweight, open-source PDF reader and annotation tool for macOS, specifically designed for in-depth reading of academic literature. It supports various annotation modes, LaTeX/BibTeX integration, and offers presentation mode along with centralized note management, meeting the efficient reading needs of researchers and students.
GoodNotes
GoodNotes is a powerful intelligent digital notebook that seamlessly integrates handwriting, typing, and real-time collaboration, offering flexible note-taking options. Leveraging AI technology, GoodNotes can transcribe meetings, generate summaries, organize ideas, and create smart flashcards, helping students study more efficiently and enhancing team collaboration and meeting productivity. It is ideal for learning, teaching, planning, and work.