tencent cloud

Cloud Object Storage

Release Notes and Announcements
Release Notes
Announcements
Product Introduction
Overview
Features
Use Cases
Strengths
Concepts
Regions and Access Endpoints
Specifications and Limits
Service Regions and Service Providers
Billing
Billing Overview
Billing Method
Billable Items
Free Tier
Billing Examples
Viewing and Downloading Bill
Payment Overdue
FAQs
Getting Started
Console
Getting Started with COSBrowser
User Guide
Creating Request
Bucket
Object
Data Management
Batch Operation
Global Acceleration
Monitoring and Alarms
Operations Center
Data Processing
Content Moderation
Smart Toolbox
Data Processing Workflow
Application Integration
User Tools
Tool Overview
Installation and Configuration of Environment
COSBrowser
COSCLI (Beta)
COSCMD
COS Migration
FTP Server
Hadoop
COSDistCp
HDFS TO COS
GooseFS-Lite
Online Tools
Diagnostic Tool
Use Cases
Overview
Access Control and Permission Management
Performance Optimization
Accessing COS with AWS S3 SDK
Data Disaster Recovery and Backup
Domain Name Management Practice
Image Processing
Audio/Video Practices
Workflow
Direct Data Upload
Content Moderation
Data Security
Data Verification
Big Data Practice
COS Cost Optimization Solutions
Using COS in the Third-party Applications
Migration Guide
Migrating Local Data to COS
Migrating Data from Third-Party Cloud Storage Service to COS
Migrating Data from URL to COS
Migrating Data Within COS
Migrating Data Between HDFS and COS
Data Lake Storage
Cloud Native Datalake Storage
Metadata Accelerator
GooseFS
Data Processing
Data Processing Overview
Image Processing
Media Processing
Content Moderation
File Processing Service
File Preview
Troubleshooting
Obtaining RequestId
Slow Upload over Public Network
403 Error for COS Access
Resource Access Error
POST Object Common Exceptions
API Documentation
Introduction
Common Request Headers
Common Response Headers
Error Codes
Request Signature
Action List
Service APIs
Bucket APIs
Object APIs
Batch Operation APIs
Data Processing APIs
Job and Workflow
Content Moderation APIs
Cloud Antivirus API
SDK Documentation
SDK Overview
Preparations
Android SDK
C SDK
C++ SDK
.NET(C#) SDK
Flutter SDK
Go SDK
iOS SDK
Java SDK
JavaScript SDK
Node.js SDK
PHP SDK
Python SDK
React Native SDK
Mini Program SDK
Error Codes
Harmony SDK
Endpoint SDK Quality Optimization
Security and Compliance
Data Disaster Recovery
Data Security
Cloud Access Management
FAQs
Popular Questions
General
Billing
Domain Name Compliance Issues
Bucket Configuration
Domain Names and CDN
Object Operations
Logging and Monitoring
Permission Management
Data Processing
Data Security
Pre-signed URL Issues
SDKs
Tools
APIs
Agreements
Service Level Agreement
Privacy Policy
Data Processing And Security Agreement
Contact Us
Glossary
DocumentationCloud Object StorageUser GuideObjectCopying ObjectsSimple Copy

Simple Copy

PDF
Focus Mode
Font Size
Last updated: 2025-09-25 15:54:53

Use Cases

You can create a copy of an object in Cloud Object Storage (COS) with a simple copy operation. The copy operation creates a copy of a COS object of up to 5 GB in a single request. To copy an object over 5 GB, use the Multipart Copy API. With the copy operation, you can:
Create a copy of an object.
Rename an object by copying it and deleting the original one.
Modify the storage class of an object. You can select the same object key as both the source and target and modify the storage class.
Copy objects across different COS regions.
Modify object metadata. You can select the same object key as both the source and target and modify object metadata.
In the copy operation, the metadata of the source object is inherited by default, while the creation date is subject to the creation date of the target object.
Note:
Unsupported operations for objects in Archive Type (such as ARCHIVE, DEEP ARCHIVE) include initiating a PUT Object - Copy request.
Buckets with MAZ configuration enabled do not support copying MAZ storage type to SAZ storage type.
To copy objects, a sub-account must have these permissions: PutObject, GetObject, and GetObjectACL. For details, see the COS Authorization API.

Usage

Using the COS Console

Note:
Support shortcut keys Ctrl+C and Ctrl+V to copy and paste.
Support shortcut key Shift for multiple selection.
The target path cannot be the same as the source path. Otherwise, the paste will fail.
1. Log in to the COS Console.
2. In the left sidebar, click Bucket List to enter.
3. Find the corresponding bucket and click the bucket name to enter the file list page.
4. Select the object or folder to copy (support multiple selections), click More Actions > Copy File.
5. After the prompt displayed for successful copy, select the target path, click More Actions > Paste to paste.
For example, paste under the target folder in a bucket.


Using REST API/SDK

Use REST API to initiate a copy object request. For details, see PUT Object - Copy API document.
You can call the object copy method setting in the SDK. For details, see the following language SDK documents:

Tools

You can directly copy objects using the following tools:
COSBrowser
COSCMD
COSCLI
Previous Topic: Searching for ObjectsNext Topic: Multipart Copy

Help and Support

Was this page helpful?

Help us improve! Rate your documentation experience in 5 mins.

Feedback