Obsidian plugins with #pdf-annotation#

The PDF++ plugin turns links to PDF text selections into visible highlights inside the built in PDF viewer, so notes and source passages stay connected through plain markdown links. It can also add highlights and links directly into PDF files, manage page composition, edit outlines and labels, improve handling of internal PDF links and add faster copying tools through palettes, hotkeys, custom menus and template based link formats. The plugin extends backlinks with page filtering and hover sync, keeps PDF tabs and embeds more controllable and adds options for external app sync.

The FleurPDF plugin adds PDF highlighting, underlining and comments with text selection tuned for Chinese and other CJK content. Highlights appear at the selected position and can use custom colours, while underlines support solid, dashed, dotted or wavy styles. A sidebar lists annotations for inline editing, deletion and export to a note organised by PDF page number. Optional AI actions can explain selected passages, translate between Chinese and English, answer questions and generate annotations for highlights through DeepSeek, OpenAI or another OpenAI compatible API. Provider settings include an API key and custom base URL, with the key stored locally except when API calls are made. Text selection can fail while the PDF text layer is loading or when a selection crosses multiple pages.

The PDF Printer plugin helps you convert PDF documents in your vault into WEBP images. It supports batch conversion of multi-page PDFs and replaces the original PDF embed with links to the generated images, streamlining visual integration into your workflow. Users can adjust image quality for a balance between clarity and storage size, and optionally define a folder to organise these output images. This is especially useful for researchers, students, or anyone who frequently works with visual references from PDFs and wants more control over how they appear within notes.

The BibLib plugin transforms your note vault into a comprehensive academic reference manager by representing each bibliographic entry as a Markdown file with CSL-JSON metadata stored in the YAML frontmatter. It integrates seamlessly with Zotero for one-click importing, supports DOI/ISBN lookups, and manages attachments like PDFs within your vault. Researchers can customize citekey generation, templates, and export citations as BibTeX or CSL-JSON for tools like Pandoc.