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OneDrive File Issues

How to Upload High-Resolution Photos from iCloud to OneDrive on iOS

Bushra ParveenBushra Parveen Oct 8, 2026 869 views

Question details

The user wants to understand how the OneDrive iOS app handles the uploading of high-resolution photos when the original files are stored in iCloud and only optimized versions exist on the local device.

How to Upload High-Resolution Photos from iCloud to OneDrive on iOS
Product
OneDrive for iOS
Device & OS
iOS
Scenario
Backing up high-resolution photos to Microsoft OneDrive while utilizing Apple's 'Optimize iPhone Storage' iCloud feature.
Observed behavior
OneDrive must temporarily download the original, high-resolution photo from iCloud to the iOS device before it can successfully upload the file to Microsoft's cloud servers.
Before you start

Ensure your iOS device is connected to a stable Wi-Fi network and has sufficient battery life, as downloading high-resolution originals from iCloud and uploading them to OneDrive can consume significant data and power.

Solution 1Recommended

Configure iCloud and OneDrive Camera Upload Settings

Adjust your Apple iCloud and Microsoft OneDrive settings to control how high-resolution photos are handled and temporarily stored during the upload process.

When your iOS device is set to 'Optimize iPhone Storage', the original high-resolution photos are kept in iCloud while smaller, space-saving versions are kept on your phone. For OneDrive to back up the highest quality version, it must briefly download the full file from iCloud.

You can manage this behavior by verifying your photo settings in both the iOS system settings and the OneDrive app.

1
Check iOS iCloud Photos Settings

Open the 'Settings' app on your iOS device, tap your Apple ID name at the top, select 'iCloud', and then tap 'Photos'. Here, note whether 'Optimize iPhone Storage' or 'Download and Keep Originals' is selected.

2
Open OneDrive Camera Upload Settings

Launch the OneDrive app on your iPhone or iPad. Tap your profile picture in the top left corner, select 'Settings', and tap on 'Camera Upload'.

3
Enable and Configure Uploads

Toggle on 'Camera Upload' if it is not already active. Ensure you grant OneDrive permission to access all photos when prompted by iOS, allowing it to fetch the iCloud originals.

Configure iCloud and OneDrive Camera Upload Settings
Temporary Local Storage: OneDrive temporarily caches the original high-resolution photo on your device just long enough to complete the upload to Microsoft's servers. It does not delete your iCloud original or permanently consume extra local storage.
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Frequently Asked Questions

Does OneDrive delete my original photos from iCloud after uploading?

No. OneDrive only temporarily downloads the high-resolution photo to upload a copy to its own servers. It does not delete the original file from iCloud or the optimized copy from your iOS device.

Why does OneDrive take so long to upload photos on iOS?

If you use 'Optimize iPhone Storage', OneDrive must first download the full-resolution original from iCloud to your local device before it can upload it to Microsoft. This two-step process depends on your internet speed and can increase the total upload time.

Can OneDrive preserve the original HEIC/HEIF photo formats from my iPhone?

Yes, OneDrive can preserve the original high-resolution formats of photos uploaded from an iOS device, including HEIF and HEIC files. You can choose whether to upload them in their original format or convert them to JPG in the OneDrive Camera Upload settings.