API features

Four useful text formats

Choose HTML, plain text, Markdown, or a JSON string.

Page-aware output

Keep the original page order, with numbered sections in HTML, Markdown, and JSON.

Multilingual documents

Extract readable text already present in PDFs, including Chinese and English.

Upload or link input

Submit a PDF file or a publicly accessible PDF URL.

Browser-ready text

Display extracted text as a readable UTF-8 HTML document.

Document workflows

Prepare PDF text for search, indexing, and content processing.

API Document

HTTP Protocol:HTTPS

HTTP Method:POST

HTTP Endpoint:https://api.gugudata.io/v1/imagerecognition/pdf2format

Response Type:application/json; charset=utf-8

DEMO Endpoint:https://api.gugudata.io/v1/imagerecognition/pdf2format/demo

Live Demo:Try Interactive Demo

Postman Collection:Run in Postman

API Request Parameters

Name	Type	Is Required	Default Value	Remark
appkey	string	true	YOUR_APPKEY	API key used to authenticate the request.
type	string	true	html	Output format: html, text (alias txt), markdown (alias md), or json. The result is always a string.
pdffile	file	false		PDF upload. Provide exactly one of pdffile, file, or file_url. Maximum 20 MiB and 100 pages. Encrypted, damaged, and textless PDFs are not supported.
file	file	false		Compatible alias for pdffile. Do not combine it with another input.
file_url	string	false	https://storage.gugudata.io/pdf/demo.pdf	Public HTTP or HTTPS PDF URL, as an alternative to a file upload.

API Response Parameters

Name	Type	Remark
dataStatus.requestParameter	string	Privacy-safe summary of the normalized request.
dataStatus.statusCode	integer	Application-level status code.
dataStatus.statusDescription	string	Human-readable application status message.
dataStatus.responseDateTime	string	Time at which the response was generated.
dataStatus.dataTotalCount	integer	Number of matching or returned records for this request.
data.result	string	Extracted HTML, plain text, Markdown, or serialized JSON containing ordered page text. Parse this string again when type=json. Does not include OCR, images, or complex layout reconstruction.

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.
413	PDF exceeds the size or page limit.	Use a PDF of at most 20 MiB and 100 pages.
422	PDF cannot be converted.	Check that the PDF is readable, unencrypted, and contains text. Output must not exceed 20 MiB.
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.
502	PDF retrieval or conversion response failed.	Check that the public PDF URL can be downloaded.
503	Conversion is temporarily unavailable.	Try again later.

Remote MCP

AI client access

Use this API through GuGuData Remote MCP

Connect your AI client once, authorize in the browser, and the client can use the GuGuData API tools available to your account. You do not need to paste an appkey into the MCP client.

Endpoint https://mcp.gugudata.io/mcp

Open MCP Guide

Generic MCP configuration

{
  "mcpServers": {
    "gugudata": {
      "url": "https://mcp.gugudata.io/mcp",
      "transportType": "streamable-http"
    }
  }
}

Code Snippets

Run in Postman Open LLM Page

Frequently asked questions

Common questions about request limits, trials, renewal, and cancellation.

What does the 5 requests per second limit mean?

It is a request-rate limit, not a concurrency allowance. Keep your request rate at or below 5 per second. If the service returns a rate-limit response, reduce the frequency and retry with backoff.

Is total paid usage limited?

There is no total request cap during an active paid subscription and no usage-based overage charge.

How does the free trial work?

Each account can receive a limited trial key. Requests are shared across APIs in the same category. Check Trial Keys for the exact allowance and remaining requests.

How do renewal and cancellation work?

The plan renews annually until canceled. Manage or cancel the renewal from Dashboard → Orders & Billing. Access continues through the paid period after cancellation. See the Terms of Service for the current refund policy. If the billing portal is unavailable, contact support.

Technical support

Need help choosing an API or getting started?

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Service terms

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