The PDF Writer plugin enables users to fill and annotate PDFs directly within Obsidian. It allows adding and editing text fields, customizing font settings, and repositioning annotations for a seamless document workflow. Users can modify PDFs with an intuitive toolbar and save changes without leaving their vault. The plugin is designed to integrate smoothly with Obsidian, making it easy to mark up PDFs for research, documentation, or note-taking purposes.

The Note Annotations plugin enhances the reading experience in Obsidian by providing features for highlighting text and adding inline comments. Users can highlight selected text in live preview mode and attach margin notes for better organization and review. The plugin supports multicolor highlights by using color tags, allowing for categorization of annotations. It offers an intuitive way to engage with notes actively, making it easier to revisit important content. The plugin settings allow customization of highlight colors.