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Upload Troubleshooting and Tips
Last updated: Jan-28-2026
This section provides troubleshooting guidance and useful tips related to uploading assets.
These topics answer questions that are commonly asked by actual Cloudinary customers.
| Page | Description |
|---|---|
| How to perform an unsigned image upload from Google Apps Script to Cloudinary | Learn how to upload images to Cloudinary using Google Apps Script with UrlFetchApp service. |
| Why does Cloudinary reject the file format of some files I'm uploading? | Learn which file extensions are blocked by Cloudinary for security reasons and how to request exceptions for paid accounts. |
| Troubleshooting failed upload requests | Learn how to troubleshoot failed upload requests by checking X-Cld-Error messages from API uploads and error messages from the Upload Widget. |
| How to always upload a square image | When uploading images to Cloudinary you can use an upload preset with an incoming transformation to define the dimensions and crop the image to a square on upload before storing it in your account. This enables you to normalize all images that are uploaded using that upload preset. |
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