Documentation Index

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Asset management troubleshooting and tips

Last updated: May-16-2026

This section provides troubleshooting guidance and useful tips related to asset management.

These topics answer questions that are commonly asked by actual Cloudinary customers.

Page Description
Why has an asset's public ID changed? Explains the common reasons why an asset's public ID might change and best practices for managing these changes.
Checking the resource type and delivery type of an asset Learn how to verify the resource type and delivery type of uploaded assets by examining the delivery URL or checking the Console.
Getting the size or dimensions of an asset by its public ID Learn multiple methods to retrieve image and video dimensions, including via API responses, Admin API queries, and the Console UI.
Downloading your account's assets Learn about the different methods to download assets from your Cloudinary account, including using the API, CLI, backups, ZIP archives, or the Media Library UI.
Deleting or modifying the original image uploaded Learn how to delete original assets and their derived versions, or modify original images using incoming transformations.
Does Cloudinary store any cookies? Explains Cloudinary's cookie usage policy and how Cloudinary handles cookies in asset delivery requests.
When might underscores in public IDs or folder names cause errors? Learn why underscores in the first few letters of a public ID containing slashes or in a folder name (in fixed-folder mode) can cause ambiguity and broken URLs, and best practices to prevent these issues.
How to update an already fetched asset? Learn how to update an asset that was previously fetched and then updated via the original remote URL using the UI or API methods.
Upload, manage and deliver PDFs Learn how to upload, manage, transform, and deliver PDF files in Cloudinary, including conversions, text extraction, and security settings.
Deleting the "sample" image Learn why Cloudinary automatically recreates the sample images (cld-sample to cld-sample-5) and how to replace them with your own image.
Avoiding duplicate uploads Learn how to use MD5 signatures, pHash similarity checks, ETag as public_id, and the Duplicate Image Detection add-on to avoid or detect duplicate uploads.
Permitted naming conventions Reference for the allowed length, characters, and other naming rules for Cloudinary cloud names and asset public IDs.

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