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Merge pull request #72 from bryan-anthropic/add-pdf-research-plugin
Add pdf-viewer plugin with local MCP server
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.claude-plugin/marketplace.json

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{
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"name": "apollo",
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"source": "./partner-built/apollo",
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"description": "Prospect, enrich leads, and load outreach sequences with Apollo.io one-click MCP server integration for Claude Code and Cowork.",
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"description": "Prospect, enrich leads, and load outreach sequences with Apollo.io \u2014 one-click MCP server integration for Claude Code and Cowork.",
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"author": {
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"name": "Apollo.io"
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}
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{
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"name": "engineering",
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"source": "./engineering",
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"description": "Streamline engineering workflows standups, code review, architecture decisions, incident response, and technical documentation. Works with your existing tools or standalone."
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"description": "Streamline engineering workflows \u2014 standups, code review, architecture decisions, incident response, and technical documentation. Works with your existing tools or standalone."
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},
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{
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"name": "human-resources",
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"source": "./human-resources",
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"description": "Streamline people operations recruiting, onboarding, performance reviews, compensation analysis, and policy guidance. Maintain compliance and keep your team running smoothly."
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"description": "Streamline people operations \u2014 recruiting, onboarding, performance reviews, compensation analysis, and policy guidance. Maintain compliance and keep your team running smoothly."
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},
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{
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"name": "design",
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"source": "./design",
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"description": "Accelerate design workflows critique, design system management, UX writing, accessibility audits, research synthesis, and dev handoff. From exploration to pixel-perfect specs."
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"description": "Accelerate design workflows \u2014 critique, design system management, UX writing, accessibility audits, research synthesis, and dev handoff. From exploration to pixel-perfect specs."
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},
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{
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"name": "operations",
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"source": "./operations",
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"description": "Optimize business operations vendor management, process documentation, change management, capacity planning, and compliance tracking. Keep your organization running efficiently."
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"description": "Optimize business operations \u2014 vendor management, process documentation, change management, capacity planning, and compliance tracking. Keep your organization running efficiently."
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},
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{
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"name": "brand-voice",
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},
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{
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"name": "cockroachdb",
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"description": "CockroachDB plugin for Claude Code explore schemas, write optimized SQL, debug queries, and manage distributed database clusters directly from your AI coding agent.",
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"description": "CockroachDB plugin for Claude Code \u2014 explore schemas, write optimized SQL, debug queries, and manage distributed database clusters directly from your AI coding agent.",
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"source": {
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"source": "url",
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"url": "https://github.com/cockroachdb/claude-plugin.git",
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},
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{
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"name": "nimble",
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"description": "Nimble web data toolkit search, extract, map, crawl the web and work with structured data agents",
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"description": "Nimble web data toolkit \u2014 search, extract, map, crawl the web and work with structured data agents",
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"source": {
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"source": "url",
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"url": "https://github.com/Nimbleway/agent-skills.git",
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},
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{
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"name": "searchfit-seo",
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"description": "Free AI-powered SEO toolkit audit websites, plan content strategy, optimize pages, generate schema markup, cluster keywords, and track AI visibility. Works with any website or codebase.",
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"description": "Free AI-powered SEO toolkit \u2014 audit websites, plan content strategy, optimize pages, generate schema markup, cluster keywords, and track AI visibility. Works with any website or codebase.",
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"source": {
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"source": "url",
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"url": "https://github.com/searchfit/searchfit-seo.git",
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},
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{
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"name": "product-tracking-skills",
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"description": "AI agent skills that make SaaS products data-ready for product analytics from codebase scan to tracking plan to working instrumentation code.",
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"description": "AI agent skills that make SaaS products data-ready for product analytics \u2014 from codebase scan to tracking plan to working instrumentation code.",
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"source": {
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"source": "url",
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"url": "https://github.com/Accoil/product-tracking-skills.git",
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"url": "https://github.com/figma/mcp-server-guide.git"
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},
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"homepage": "https://github.com/figma/mcp-server-guide"
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},
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{
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"name": "pdf-viewer",
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"source": "./pdf-viewer",
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"description": "View, annotate, and sign PDFs in a live interactive viewer. Mark up contracts, fill forms with visual feedback, stamp approvals, and place signatures \u2014 then download the annotated copy."
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}
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]
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}
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{
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"name": "pdf-viewer",
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"version": "0.2.0",
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"description": "View, annotate, and sign PDFs in a live interactive viewer. Mark up contracts, fill forms with visual feedback, stamp approvals, and place signatures — then download the annotated copy.",
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"author": {
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"name": "Anthropic"
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}
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}

pdf-viewer/.mcp.json

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{
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"mcpServers": {
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"pdf": {
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"command": "npx",
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"args": ["-y", "@modelcontextprotocol/server-pdf", "--stdio"]
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}
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}
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}

pdf-viewer/CONNECTORS.md

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# Connectors
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## Local MCP Server
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This plugin uses a **local MCP server** instead of a remote connector.
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The PDF server runs on your machine via `npx`.
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| Category | Server | How it runs |
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|----------|--------|-------------|
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| PDF viewer & annotator | `@modelcontextprotocol/server-pdf` | Local stdio via `npx` (auto-installed) |
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### Requirements
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- Node.js >= 18
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- Internet access for remote PDFs (arXiv, bioRxiv, etc.)
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- No API keys or authentication needed

pdf-viewer/LICENSE

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pdf-viewer/README.md

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# PDF Viewer Plugin
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View, annotate, and sign PDFs in a live interactive viewer. Mark up
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contracts, fill forms with visual feedback, stamp approvals, and place
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signatures — then download the annotated copy.
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## What It Does
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- **Open PDFs** from local files or academic sources (arXiv, bioRxiv, etc.)
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- **Annotate collaboratively** — Claude proposes highlights, notes, and
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stamps section by section; you review each batch in the viewer
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- **Fill forms** — guided field-by-field completion with live preview
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- **Sign documents** — place signature/initials images on the page
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- **Stamp approvals** — APPROVED, DRAFT, CONFIDENTIAL, or any custom label
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- **Download** — export the annotated PDF from the viewer toolbar
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## Commands
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| Command | What it does |
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|---------|-------------|
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| `/pdf-viewer:open` | Open a PDF in the interactive viewer |
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| `/pdf-viewer:annotate` | Walk through the document, propose + apply markup, review together |
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| `/pdf-viewer:fill-form` | Fill PDF form fields interactively |
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| `/pdf-viewer:sign` | Place a signature or initials image on the page |
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## When to use this vs. just reading a PDF
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This plugin is for **interactive, visual workflows** — when you want to
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see the document, mark it up, and download an annotated copy.
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If you just want Claude to **summarize or extract text** from a PDF,
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don't use this plugin. Claude can read PDF files natively and that's
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faster for pure ingestion.
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## How It Works
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This plugin uses a **local MCP server** (`@modelcontextprotocol/server-pdf`)
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that runs on your machine via `npx`. No API keys or remote services —
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the PDF server starts automatically when the plugin loads.
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## Requirements
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- Node.js >= 18
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- Internet for remote PDFs (arXiv, etc.)
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## Supported PDF Sources
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- Local files (file paths in your working directory)
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- [arXiv](https://arxiv.org)`/abs/` URLs auto-convert to PDF
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- Any direct HTTPS PDF URL (bioRxiv, Zenodo, OSF, etc. — use the PDF
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link, not the landing page)
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## Signature Disclaimer
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`/pdf-viewer:sign` places a **visual** signature image on the page. It is not
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a certified or cryptographic digital signature. For legally binding
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e-signatures, use a dedicated signing service.

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