GD4AI / obsidian-llm-wiki

Karpathy's LLM Wiki implementation plugin for Obsidian - turns notes and PDFs into a linked, LLM-powered knowledge base with entity pages, concept pages, graph-powered Q&A, and local-first privacy.

angelbot-ai / TeamSync-PDF-Viewer

TeamSync PDF Viewer

jasonulbright / Spectra-PDF

Free, open-source PDF workbench for Windows — 20+ tools, digital signatures, OCR, redaction, CLI support.

leyuwei / PDFuck

A Tiny, Researcher-Friendly, AI-Empowered Open-Source PDF&Markdown Editor / 一个小巧、研究人员友好、AI能力集成的开源PDF和Markdown编辑器 / 呱~