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To test PDFCrowd’s PDF-to-HTML API in Postman, send a POST request to https://api.pdfcrowd.com/convert/24.04/, authenticate with Basic Auth using your PDFCrowd username and API key, and provide the PDF plus conversion settings as form-data. A successful response is 200 OK with HTML or ZIP content. PDFCrowd’s HTTP API guide documents the endpoint and request format.

Set up the Postman request

  1. Create a request: Start a new request, select POST, and enter https://api.pdfcrowd.com/convert/24.04/. Keep the versioned endpoint as documented; do not silently replace it with an unversioned URL. See the PDFCrowd examples.
  2. Configure authentication: Open the Authorization tab and select Basic Auth. Put your PDFCrowd username in Username and your API key in Password. For a request shared with others, store real credentials in secure Postman variables or Vault rather than in the shared request itself. Demo credentials shown in PDFCrowd examples are for trying the examples; use your account credentials to test your account. See Postman request basics.
  3. Choose the request body: Open Body and select form-data. Add the text fields input_format with value pdf and output_format with value html.

PDFCrowd does not support JSON request bodies. Postman’s form-data mode supports text fields and file uploads, and supplies the appropriate content type. For a file upload, allow Postman to generate the multipart header and boundary; do not type a replacement multipart Content-Type header yourself. See the Postman request-body documentation and PDFCrowd API reference.

Choose how to send the PDF

Provide exactly one input: a URL or a local file. Both routes use the same POST request and the form-data body.

Input method Postman field Use it when
PDF at a URL Add a text field named url with an http:// or https:// address. The address is reachable from PDFCrowd’s servers and returns the PDF directly.
PDF on your computer Add file, change that row’s type from Text to File, then select the PDF. You want to submit a local document, or the remote source is not reachable by PDFCrowd.

For URL input, a page that requires login or returns an HTML login screen is not a usable PDF source. For file input, the selected document must be a valid PDF. PDFCrowd’s HTTP guide describes both input routes.

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Send the request and read the response

Click Send. First check the HTTP status, then inspect Content-Type and the response body. PDFCrowd documents 200 OK for a successful conversion; the body contains HTML or ZIP bytes.

  • text/html indicates an HTML response.
  • application/zip indicates a ZIP response. By default, resources such as images, stylesheets, and fonts are embedded. Resource-separation options or force_zip=true can make the result a ZIP instead.

For a first test, leave resource options at their defaults. If Postman displays binary content awkwardly, save the response to a file and open the resulting HTML or ZIP with an appropriate application. PDFCrowd specifically advises checking the HTTP status before processing the body; see its HTTP API guide.

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Fix common request and response problems

What you see Likely cause What to check or change
Missing input or request data The body mode or field names are wrong, or neither input field is present. Set Body to form-data; check the exact field names and values; supply either url or file.
The URL input fails to load The address is inaccessible from PDFCrowd’s servers, requires authentication, or returns a page rather than a PDF. Check that the URL returns the PDF directly and is reachable externally. Try uploading the PDF with the file field if appropriate.
The submitted PDF cannot be opened The uploaded or remote document is not a valid PDF. Open the source PDF locally to verify it, then retry with a valid file or direct PDF URL.
Unexpected body or conversion error The request may be returning an error rather than converted content. Read the status and response body before treating it as HTML or ZIP. Add ?errfmt=json to the endpoint to request JSON-formatted errors; successful responses remain HTML or ZIP.
You need more conversion diagnostics The response alone may not explain the failure. Look for the x-pdfcrowd-debug-log response header, which provides a diagnostics link. PDFCrowd also makes logs available in conversion history.

These checks are based on PDFCrowd’s HTTP guide and API reference.

Or skip the browser setup

If your goal is a website screenshot rather than converting a PDF to HTML, ScreenshotNeo provides a one-request screenshot API. For example, this cURL request captures a page as WebP:

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curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webp

See the ScreenshotNeo API documentation for the available options. ScreenshotNeo removes cookie banners, newsletter popups, and chat widgets before the shot; bot checks, blank pages, and failed loads are never billed. Its MCP server lets AI agents take screenshots. The free plan includes 1,000 screenshots a month with no card, and paid plans start at $5 for 3,000. Learn about ScreenshotNeo or sign up for free.

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Frequently Asked Questions

Can I send a JSON body to PDFCrowd’s PDF-to-HTML endpoint?

No. The endpoint expects form fields; use Postman’s form-data body mode.

Why did my response download as a ZIP instead of HTML?

Resource-separation settings or force_zip=true can produce ZIP output rather than HTML.

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