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

# PDF KnowledgeBase

## Example

<Note>
  Install `pypdf` if needed using [this guide](/how-to/install)
</Note>

```python knowledge_base.py theme={null}
from phi.knowledge.pdf import PDFKnowledgeBase, PDFReader
from phi.vectordb.pgvector import PgVector

from resources import vector_db

pdf_knowledge_base = PDFKnowledgeBase(
    path="data/pdfs",
    # Table name: llm.pdf_documents
    vector_db=PgVector(
        table_name="pdf_documents",
        db_url=vector_db.get_db_connection_local(),
    ),
    reader=PDFReader(chunk=True),
)
```

## PDFKnowledgeBase Params

| Parameter | Type                               | Default       | Description                                                                                          |
| --------- | ---------------------------------- | ------------- | ---------------------------------------------------------------------------------------------------- |
| `path`    | `Union[str, Path]`                 | -             | Path to `PDF` files. Can point to a single PDF file or a directory of PDF files.                     |
| `reader`  | `Union[PDFReader, PDFImageReader]` | `PDFReader()` | A `PDFReader` or `PDFImageReader` that converts the `PDFs` into `Documents` for the vector database. |

## AgentKnowledge Params

`PDFKnowledgeBase` is a subclass of the `AgentKnowledge` class and has access to the same params

<Snippet file="kb-base-reference.mdx" />