generate_pdf_from_html · PDF-Tools MCP Server MCP

WHAT IT DOES

What generate_pdf_from_html does on PDF-Tools MCP Server

AI agents use generate_pdf_from_html to create or update resources in PDF-Tools MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your PDF-Tools MCP Server environment.

WHY IT NEEDS A POLICY

Why generate_pdf_from_html needs a policy

The tool generates and writes PDF files to the user's filesystem in standard directories (Downloads, Documents, Desktop). This is a Write operation because it creates new data artifacts reversibly (generated PDFs can be deleted). It does not execute arbitrary code or shell commands beyond PDF generation itself; Puppeteer is used solely for rendering HTML to PDF in a sandboxed manner.

From the tool's definition Tool description states "Generate a PDF from HTML content" and server description confirms "Enables PDF generation from HTML" with outputs that "automatically save to user directories like Downloads, Documents, or Desktop." This creates new files.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_pdf_from_html Rate-limited

generate_pdf_from_html stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "generate_pdf_from_html": {
      "limits": [
        {
          "counter": "generate_pdf_from_html_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches PDF-Tools MCP Server, so you can run agents against it safely.

FAQ

Questions about generate_pdf_from_html

What does the generate_pdf_from_html tool do? +

Generate a PDF from HTML content using Puppeteer. It is categorised as a Write tool in the PDF-Tools MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_pdf_from_html? +

Register the PDF-Tools MCP Server MCP server in PolicyLayer and add a rule for generate_pdf_from_html: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches PDF-Tools MCP Server. Nothing to install.

What risk level is generate_pdf_from_html? +

generate_pdf_from_html is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit generate_pdf_from_html? +

Yes. Add a rate_limit block to the generate_pdf_from_html rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block generate_pdf_from_html completely? +

Set action: deny in the PolicyLayer policy for generate_pdf_from_html. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides generate_pdf_from_html? +

generate_pdf_from_html is provided by the PDF-Tools MCP Server MCP server (theorhd/pdftools-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.