Preview PDF file information before adding watermark.
AI agents call preview_pdf to retrieve information from Mcp Watermark without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and displays information about a PDF file without modifying it. 'Preview' and 'before adding watermark' indicate a read-only operation to inspect the file prior to any changes.
From the tool's definition Preview PDF file information before adding watermark
Attacks that exploit this kind of access
Preview PDF file information before adding watermark. It is categorised as a Read tool in the Mcp Watermark MCP Server, which means it retrieves data without modifying state.
Register the Mcp Watermark MCP server in PolicyLayer and add a rule for preview_pdf: 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 Mcp Watermark. Nothing to install.
preview_pdf is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the preview_pdf 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.
Set action: deny in the PolicyLayer policy for preview_pdf. 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.
preview_pdf is provided by the Mcp Watermark MCP server (xecho-dev/mcp-watermark). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →