PDF++: the most Obsidian-native PDF annotation & viewing tool ever. Comes with optional Vim keybindings.
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Aug 30, 2025 - TypeScript
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pdf-annotation
Here are 81 public repositories matching this topic...
Open Paper is a workbench for managing your research library. Read, annotate, and understand your papers all in one place. Use an AI assistant to conduct your literature review.
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Aug 15, 2026 - Python
An annotation extension based on the PDF.js viewer. Supporting the editing of existing PDF file annotations, posting comments, replying, submitting annotation data, and loading for further editing. 一个基于 PDF.js 阅读器的批注扩展，支持对现有 PDF 文件批注的编辑、发布评论、回复、提交批注数据以及加载后续编辑功能。
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Jun 16, 2026 - TypeScript
Backchannel brings the internet's conversations into whatever you're reading. It blends Hacker News, Bluesky, Reddit, and more into a single discussion thread beside any page, then brings those sources together into a blended front page when you're ready to find something new.
discussion reddit hacker-news wikipedia userscript annotations lobsters bluesky pdf-annotation lemmy
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Aug 16, 2026 - JavaScript
The Google Scholar PDF Reader browser extension, now with annotations!
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Nov 25, 2025 - JavaScript
Modular multi-screen pdf presentation viewer
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Apr 26, 2026 - C++
Alfred Workflow to extract annotations from PDF files.
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Aug 3, 2026 - JavaScript
C# and VB.NET samples for Docotic.Pdf library
pdf-forms extract-images html-to-pdf pdf-generation pdf-to-text extract-text pdf-manipulation net-core pdf-merge pdf-library pdf-parser pdf-to-image pdf-signature print-pdf pdf-compression pdf-annotation pdf-flattener sign-pdf images-to-pdf docotic-pdf
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May 18, 2026 - Visual Basic .NET
MAINTENANCE-MODE: Simple "digitial paper" for note taking and PDF annotation. Heavily inspired by Xournal.
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Jul 14, 2026 - TypeScript
A React component for annotating PDF, powered by PDF.js and RecogitoJS
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Mar 29, 2024 - JavaScript
📄 Set of modern React components for PDF highlighting
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Jul 5, 2026 - TypeScript
PDF viewer and annotation SDK for React, with comments, collaborative permissions, and PDF/Excel export.
react pdf review annotation viewer markup comment collaboration pdf-viewer highlight pdf-reader react-pdf pdf-annotation pdf-annotator document-review annotation-permissions
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Aug 5, 2026 - TypeScript
Full-featured PDF viewer with enhancements especially for academic papers
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Jul 8, 2026 - JavaScript
Theses-Checker is a tool for students and teachers alike to check theses for frequent typographical errors and see content analysis for quick evaluation on it's length. (This program is a part of a bachelor's thesis.)
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Jun 3, 2026 - Python
A completely free PDF coordinate annotation tool that lets you click anywhere on a PDF document to insert precise X,Y coordinates
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Nov 21, 2025 - TypeScript
A cross-platform PDF application built on the UI views and PDFium from chromium
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Aug 7, 2026
PDF viewer and annotation SDK for Vue 3, with comments, collaborative permissions, and PDF/Excel export.
pdf review sdk vue annotation viewer markup comment collaboration pdf-viewer highlight pdf-reader vue-pdf vue3 pdf-annotation pdf-annotator document-review annotation-permissions
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Aug 5, 2026 - TypeScript
An Obsidian plugin that synchronizes selected Zotero full-text items with your vault in realtime, vectorizes them and lets you chat with your pdf documents.
redis semantic-search vectorisation pdf-annotation obsidian-plugin ai-assistant rag-pipeline rag-chatbot
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Aug 15, 2026 - TypeScript
Search comments and highlights annotations in PDF documents.
pdf finder searcher pdf-document pdf-annotation electronjs-app pdf-comment pdf-highlight pdf-annotation-search pdf-comment-search pdf-highlight-search pdf-document-list pdf-annotation-list pdf-comment-list pdf-highlight-list pdf-title-editor
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May 4, 2023 - JavaScript
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