> ## Documentation Index
> Fetch the complete documentation index at: https://docs-v1.agno.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Agentic filtering with Pdf-Url

> Learn how to do agentic knowledge filtering using Pdf-Url documents with user-specific metadata.

## Code

```python theme={null}
from agno.agent import Agent
from agno.knowledge.pdf_url import PDFUrlKnowledgeBase
from agno.vectordb.lancedb import LanceDb

# Initialize LanceDB
# By default, it stores data in /tmp/lancedb
vector_db = LanceDb(
    table_name="recipes",
    uri="tmp/lancedb",  # You can change this path to store data elsewhere
)

# Step 1: Initialize knowledge base with documents and metadata
# ------------------------------------------------------------------------------
# When initializing the knowledge base, we can attach metadata that will be used for filtering
# This metadata can include user IDs, document types, dates, or any other attributes

knowledge_base = PDFUrlKnowledgeBase(
    urls=[
        {
            "url": "https://agno-public.s3.amazonaws.com/recipes/thai_recipes_short.pdf",
            "metadata": {
                "cuisine": "Thai",
                "source": "Thai Cookbook",
                "region": "Southeast Asia",
            },
        },
        {
            "url": "https://agno-public.s3.amazonaws.com/recipes/cape_recipes_short_2.pdf",
            "metadata": {
                "cuisine": "Cape",
                "source": "Cape Cookbook",
                "region": "South Africa",
            },
        },
    ],
    vector_db=vector_db,
)

# Load all documents into the vector database
knowledge_base.load(recreate=True)

# Step 2: Query the knowledge base with Agent using filters from query automatically
# -----------------------------------------------------------------------------------

# Enable agentic filtering
agent = Agent(
    knowledge=knowledge_base,
    search_knowledge=True,
    enable_agentic_knowledge_filters=True,
)

# Query for Jordan Mitchell's experience and skills with filters in query so that Agent can automatically pick them up
agent.print_response(
    "How to make Pad Thai, refer from document with cuisine Thai and source Thai Cookbook",
    markdown=True,
)
```

## Usage

<Steps>
  <Step title="Install libraries">
    ```bash theme={null}
    pip install -U agno openai lancedb
    ```
  </Step>

  <Step title="Run the example">
    <CodeGroup>
      ```bash Mac theme={null}
      python cookbook/agent_concepts/knowledge/filters/pdf_url/agentic_filtering.py
      ```

      ```bash Windows theme={null}
      python cookbook/agent_concepts/knowledge/filters/pdf_url/agentic_filtering.py
      ```
    </CodeGroup>
  </Step>
</Steps>