API Service Status Codes


This is a list of HTTP status codes returned from the API. If you use an API client library, refer to the error handling section of the particular client library documentation to learn how to receive the status code.

If you are troubleshooting an issue, you can enable logging of conversion details with the setDebugLog() API method. When enabled, the logs are available in your conversion log.

Status Codes

Code Message Description
200 OK The API call succeeded.
400 Bad Request The user sent an invalid request.
401 No Authorization Provided Authentication is required and has failed or has not yet been provided or your license does not exist.
403 Service Suspended Your license is suspended or there are no credits left.
405 Method Not Allowed The method specified in the request is not allowed. The request method must be POST.
413 Request Entity Too Large

The size limit for the uploaded data is 50MB.

You can zip your HTML to avoid this error.

429 Too Many Requests The user has sent too many requests in a given amount of time (rate limiting).
430 Concurrent Requests Exceeded

The limit of max concurrent requests was exceeded.

452 No Input Specified There is nothing specified to be converted.
453 Unknown Conversion Option Some conversion option is unknown. See details in HTTP response body.
454 Too Complex Input The input is too complex or large. It can't be converted. Try to simplify your input data.
455 Conversion System Error The conversion can't be finished due to a system error.
456 Wrong Input File The input file is not specified correctly. Files are accepted only in multipart POST requests.
457 Unknown File Type The type of the input file is unknown. The file has no extension.
458 Conversion Time Exceeded

The request was aborted because it took long time.

A typical cause of this error is too many images in the HTML page which take too long to download. Another cause might be a long running JavaScript.

Try to simplify your input data or speed up the page load time.

459 Bad Archive The archive uploaded can't be accepted. It's too large, corrupted or contains symbolic links.
460 Too Large Output The output is too large. Try to simplify your input data or compress images.
470 Invalid Value A conversion option is set to an invalid value.
471 Navigation Failed The converted URL can't be navigated to.
472 Sub-requests Number Exceeded Exceeded the maximum number of sub-requests during a conversion.
473 Main Frame Error The main frame loaded with an HTTP code >= 400.
474 URL Load Error The URL loaded with an HTTP code >= 400.
475 Custom JavaScript Time Exceeded The request was aborted because the custom JavaScript took long time.
476 Element Not Found The element specified for print or wait was not found in the input document.
477 Unsupported Document Type The input document type is unknown or not supported. For example, the HTML content type should be text/html.
478 Hostname Not Resolved The URL hostname could not be resolved.
479 Invalid URL The URL is invalid.
480 Invalid SSL Certificate The converter couldn't establish an HTTPS connection because of an invalid SSL certificate.
481 SSL Error

There was a problem connecting to Pdfcrowd servers over HTTPS. This could be caused by several reasons, one of them is that your local CA certificate store is out of date or not configured correctly.

An alternative is to use the API over HTTP. The HTTP mode can be enabled by the setUseHttp method.

502 Bad Gateway The 502 status code indicates a temporary network issue. Try the request again.