> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pdfshift.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Error codes

Most of the errors you will encounter when using our API can be found here. In case something is missing, feel free to let us know.

The PDFShift API uses the following error codes:

| Error | Status                                                     | Meaning                                                                           |
| ----- | ---------------------------------------------------------- | --------------------------------------------------------------------------------- |
| 400   | Bad Request                                                | Your request is invalid. Often, it means a parameter was wrongly set.             |
| 401   | Unauthorized                                               | No API key were found.                                                            |
| 403   | Forbidden                                                  | The provided API key is invalid.                                                  |
| 404   | Not Found                                                  | The page you tried to reach was not found.                                        |
| 405   | Method Not Allowed                                         | The endpoint you tried to reach is not available with this HTTP method.           |
| 408   | A timeout error occured when trying to convert a document. |                                                                                   |
| 429   | Too Many Requests                                          | You sent too many request. Please see the Rate limiting section for more details. |
| 500   | Internal Server Error                                      | We had a problem with our server.                                                 |