What Are the Differences Between Sharing Images and Replicating Images?

Sharing images:
You can only share images within a region with other users. To share an image across regions, replicate the image to the target region and then share it. For details, see Overview.
Replicating images:
- In-region: You can convert encrypted and unencrypted images into each other or enable some advanced features (such as fast ECS creation from an image) using the image replication function.

The following table describes the details.

Scenario	Operation	Description	Helpful Links
Sharing	Share	The image is shared with another user in the same region. The target user can use the image (with the same ID as the source image) but the image owner is still the user who shared it.	For details, see Sharing Specified Images.
In-region replication under the same account	Replicate	This is used for conversion between encrypted images and unencrypted images or for enabling advanced features (such as fast ECS creation from an image).	For details, see Replicating Images Within a Region.