MarginNote 4: AI Notes·MindMap at Mac App Store analyse

This update introduces PDF Condense and Block Selection, along with a new External Agent Book Breakdown feature. It also upgrades Immersive Mode and the AI chat panel, while continuing to improve Backup & Sync, text box editing, Markdown rendering, and the in-app feedback experience. New PDF Condense • After selecting PDF content, you can condense the original text into a short summary displayed in a collapsed form at the original location, making it easier to recall and review. • Condense settings support condensation granularity, output language, font, and font size. You can also choose between cloud AI and on-device offline AI. On-device offline AI requires Apple Intelligence support and does not consume MarginNote built-in AI credits. New PDF Block Selection • After enabling Assistive Excerpt, you can select one or multiple text blocks and then perform Excerpt or Condense. • This mode is designed for more precise selection and organization by paragraph or content block, making PDF excerpting and condensing more flexible. New External Agent Book Breakdown • Chapter content can be exported as a breakdown task package and saved to iCloud, the app directory, or another location accessible to external agents such as Claude Code, Codex, or OpenClaw. • After processing, the package can be imported back into MarginNote to generate source-linked mind map cards. • External Agent Book Breakdown does not consume MarginNote built-in AI credits. Immersive Mode Improvements • Document-only view now also supports Immersive Mode. • The document menu in Immersive Mode now includes Show Document Notebook Bar, Dual-Document Comparison, Table of Contents, Import Document, and Linked Documents, allowing you to browse and jump through the table of contents, import documents, compare documents side by side, and manage linked documents while staying immersed. • The AI chat window in Immersive Mode has been upgraded to a floating window. • Floating windows, including AI Chat and Research Browser, now support dragging, resizing, and minimizing to a bubble. They also remember their last position and size to reduce obstruction of reading content. Text Box Editing Improvements • Improved text box editing, including cursor positioning, text selection, keyboard avoidance, and content clipping. Also fixed an issue where the background color could be lost when remembering text box styles. • Newly created text boxes are now constrained within the page by default to avoid overflow. Customer Support Upgrade • In-app Feedback & Support now supports directly attaching files such as images, documents, logs, crash files, archives, and videos, with a single attachment limit of 20 MB. • Users can now like support replies, helping us continuously improve support quality. Other Improvements and Fixes • Optimized PDF selection, Markdown formula rendering, and web import experience, reducing menu anomalies, rendering issues, and import freezes. • Optimized backup and import processes for WebDAV, Google Drive, and other services, improving transfer and login compatibility. • Optimized the large-file upload process for Baidu Netdisk, reducing memory usage during uploads and improving backup stability for large files. • Optimized the restore purchase process, improving the accuracy of restoring entitlements such as Max and Pro-to-Max upgrades, and providing clearer prompts when restoration fails. • Fixed multiple display issues in Immersive Mode, including toolbar residue, invisible top navigation, mind map covering documents, and icon flickering. • Added multilingual text and fixed some localization issues. • Reduced the frequency of in-app rating prompts to minimize interruptions during learning. • Continued improvements to overall experience and stability.