# Loader

## What is Loader?

**Loader** is designed for **extracting information from the provided source**.

To give you an idea what a Loader does, this is a snippet of a sample JSON output:

```json
{
    "text": "[Header] This is the Header of the Document",
    "structure": "uncategorized",
    "metadata": {
        "source": "pdf-example.pdf",
        "source_type": "pdf",
        "loaded_datetime": "2024-10-17 17:10:30",
        "font_size": 12,
        "font_family": "TimesNewRomanPSMT",
        "font_color": "#000000",
        "coordinates": [
            72,
            292,
            49,
            36
        ],
        "links": [],
        "layout_width": 612,
        "layout_height": 792,
        "page_number": 1,
        "sorted_element_format": [
            [
                12,
                "TimesNewRomanPSMT",
                "#000000"
            ]
        ]
    }
}
```

<details>

<summary>This is the complete JSON Schema for the output</summary>

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "type": "array",
 "items": {
   "type": "object",
   "properties": {
     "text": {
       "type": "string",
       "description": "Text content of the document"
     },
     "structure": {
       "type": "string",
       "description": "Structure of the document",
       "enum": [
         "uncategorized",
         "header",
         "title",
         "heading",
         "heading 1",
         "heading 2",
         "heading 3",
         "heading 4",
         "heading 5",
         "heading 6",
         "paragraph",
         "table",
         "audio",
         "image",
         "video",
         "footer",
         "footnote"
       ]
     },
     "metadata": {
       "type": "object",
       "properties": {
         "source": {
           "type": "string",
           "description": "Source of the document"
         },
         "source_type": {
           "type": "string",
           "description": "Type of source either pdf, website, or other",
           "enum": [
             "pdf",
             "docx",
             "xlsx",
             "pptx",
             "csv",
             "txt",
             "website",
             "audio",
             "image",
             "video"
           ]
         },
         "loaded_datetime": {
           "type": "string",
           "description": "Date and time when the data was loaded"
         }
       },
       "required": [
         "source",
         "source_type",
         "loaded_datetime"
       ],
       "description": "Metadata of the document"
     }
   },
   "required": [
     "text",
     "structure",
     "metadata"
   ]
 }
}

```

</details>

Our Loader has the following sub components to handle various types of documents:

1. Audio
2. CSV
3. DOCX
4. HTML
5. Image
6. JSON
7. PDF
8. PPTX
9. TXT
10. XLSX

## API Reference

For more information about Loader, please take a look at our [API Reference page](https://api.python.docs.gdplabs.id/gen-ai/library/gllm_docproc/api/loader.html).


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://gdplabs.gitbook.io/sdk/gen-ai-sdk/tutorials/document-processing-orchestrator/loader.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.