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PDF OCR Searchable Archive Document Intake

PDF OCR to Text API

Extract searchable text from scanned PDFs

What can this API do?

Scanned PDF recognition

Upload a PDF and receive page-level recognized text plus combined full text for search, review, and automation.

Page-by-page text

Receive one text entry per page in document order, including empty entries for blank pages.

Combined document text

Store extracted text beside the source PDF so historical scans, contracts, receipts, and forms become searchable.

English and Chinese options

Choose English, Simplified Chinese, Traditional Chinese, or an English and Chinese combination.

Document workflows

Call the endpoint from document queues, ingestion services, or back-office automation for repeated PDF processing.

Upload or PDF link

Upload a PDF or submit a public PDF link for automated document intake.

PDF OCR to Text API
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API Document

HTTP Protocol:HTTPS

HTTP Method:POST

HTTP Endpoint:https://api.gugudata.io/v1/imagerecognition/pdf2text

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

DEMO Endpoint:https://api.gugudata.io/v1/imagerecognition/pdf2text/demo

Live Demo:Try Interactive Demo

Full API Docs:developers.gugudata.io

API Request Parameters

NameTypeIs RequiredDefault ValueRemark
appkeystringtrueYOUR_APPKEYApplication key supplied as a query parameter.
filefilefalseUpload a PDF. Provide exactly one of file or file_url. Maximum 20 MiB and 50 pages.
file_urlstringfalsePublic HTTP(S) PDF URL, up to 2048 characters. Provide exactly one of file or file_url.
langstringfalseenen, zh-CN, zh-TW, en+zh-CN, or en+zh-TW. Recognition quality depends on the scan.

API Response Parameters

NameTypeRemark
resultTextarray<string>Recognized text in page order; blank pages retain an empty string.
textstringNonempty page text joined by two newline characters.

API Response Status Codes

Status CodeExplanation of Status CodeRemarks
200Request processed successfully.Some endpoints expose a separate application-level status field in the response body, such as `dataStatus.statusCode`.
400Invalid request parameters or request format.Check required fields, data types, and request body format.
401Missing or unknown application key.Provide a valid `appkey` with the request.
403The application key is recognized but access is not allowed.The key may be expired, inactive, or not permitted for the requested API.
413PDF exceeds the size or page limit.Use a PDF of at most 20 MiB and 50 pages.
422PDF cannot be recognized.Use an unencrypted PDF with legible printed text.
429Request rate or trial usage limit exceeded.Reduce concurrency or retry after the limit window resets.
500Internal service error.Retry later or contact support if the error persists.
502PDF download or recognition failed.Check the PDF link and try again later.
503Recognition 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 Apifox Run in Postman Open LLM Page

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