If you are experiencing issues with uploading documents to NaturalReader, follow these step-by-step troubleshooting steps to resolve the problem:

1. Check Document Integrity: Ensure that the document you are trying to upload is not corrupted. Try to open the document outside of the NaturalReader app. If it cannot be opened normally, you may need to use a different or uncorrupted file - learn more.

2. File Size: Confirm that the document size does not exceed the maximum upload limit of 20MB. Larger files may prevent successful uploads - learn more.

3. Correct Uploading Process:
- Open the NaturalReader app and select "Add Files" from the side menu.
- Choose "Document" from the options.
- Locate the document on your computer and select it.
- Click "Open" to start the upload - learn more.

4. Supported Formats: Ensure the document format is supported by NaturalReader, such as PDF or DOCX. Unsupported formats will not upload successfully.

5. Browser Issues: If you are using the web app, make sure that your browser is updated to the latest version. Try using a different web browser or clearing the cache and cookies of your current browser.

6. Check Internet Connection: Verify that your internet connection is stable. A weak or intermittent connection may affect the upload process.

7. Try Different Files: If you continue facing issues, test with different documents to see if the problem persists across all files or just specific ones - learn more.

8. Contact Support: If none of the above solutions resolve your issue, it may be beneficial to contact NaturalReader support for further assistance.

Following these steps should help you troubleshoot and resolve any issues related to document uploads in NaturalReader.