# PDF AI Summary
Summarize uploaded PDFs in a language of your choice.
## API Overview
- **HTTP Protocol:** HTTPS
- **HTTP Method:** POST
- **HTTP Endpoint:** https://api.gugudata.io/v1/imagerecognition/pdf-summary
- **Response Type:** application/json; charset=utf-8
- **DEMO Endpoint:** https://api.gugudata.io/v1/imagerecognition/pdf-summary/demo
- **Live Demo:** https://gugudata.io/demo/pdf-summary
- **Postman:** https://www.postman.com/gugudata/gugudata-io
- **LLM Page:** https://gugudata.io/details/pdf-summary/llm
- **Raw Markdown:** https://gugudata.io/details/pdf-summary/llm.md
## Remote MCP
- **MCP Endpoint:** https://mcp.gugudata.io/mcp
- **MCP Guide:** https://gugudata.io/mcp/
- **Authorization:** OAuth authorization opens in the browser; do not paste appkeys into MCP clients.
- **Tool Scope:** MCP clients receive GuGuData API tools available to the authorized account.
## Data & API Features
- AI summaries from PDF files: Transform an uploaded PDF into a concise summary that highlights the document's central information.
- Selectable summary language: Request the summary in the language that best fits your readers and downstream workflow.
- Multi-page document support: Summarize reports, papers, manuals, and other documents that span multiple pages.
- Faster document review: Give teams a quick briefing before they decide which source documents require deeper reading.
- Knowledge workflow input: Use summaries in research, support, operations, study, and internal knowledge tools.
- Simple structured response: Receive the generated summary as a predictable JSON field for storage, display, or further processing.
## API Request Parameters
| Name | Type | Is Required | Default Value | Remark |
| --- | --- | --- | --- | --- |
| appkey | string | true | YOUR_APPKEY | API key used to authenticate the request. |
| file | file | true | | PDF file to summarize, uploaded as multipart form data. |
| lang | string | false | en | Language in which the summary should be written. |
## API Response Parameters
| Name | Type | Remark |
| --- | --- | --- |
| summary | string | AI-generated summary of the PDF document in the specified language. |
## API Response Status Codes
| Status Code | Explanation of Status Code | Remarks |
| --- | --- | --- |
| 200 | Request processed successfully. | Some endpoints expose a separate application-level status field in the response body, such as `dataStatus.statusCode`. |
| 400 | Invalid request parameters or request format. | Check required fields, data types, and request body format. |
| 401 | Missing or unknown application key. | Provide a valid `appkey` with the request. |
| 403 | The application key is recognized but access is not allowed. | The key may be expired, inactive, or not permitted for the requested API. |
| 429 | Request rate or trial usage limit exceeded. | Reduce request frequency and retry with backoff. If a trial allowance is exhausted, check Trial Keys for remaining requests and subscribe to continue. |
| 500 | Internal service error. | Retry later or contact support if the error persists. |
| 503 | Upstream service unavailable. | Retry later; the requested upstream dependency is temporarily unavailable. |
## cURL Example
```bash
curl --location 'https://api.gugudata.io/v1/imagerecognition/pdf-summary?appkey=YOUR_APPKEY' --form 'file=@localfile_path.pdf' --form 'lang=en'
```