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SVG Compression

Last updated: 2024-06-12 15:20:05

    Feature Overview

    Image compression is the process of downsizing an image as much as possible without sacrificing quality so that it can be stored at a lower cost and accessed more quickly.
    Based on CI, COS provides the SVG compression feature, which can delete certain redundant information from an SVG file without compromising the display effect in order to downsize the file.

    Restrictions

    Format: Only SVG images can be used as the input.
    Size: The input image cannot be larger than 32 MB.

    Directions

    COS provides the SVG compression feature using CI's imageMogr2 API.
    An image can be processed:
    Upon download
    Upon upload
    In cloud
    Note:
    SVG Compression is charged by CI at image advanced compression rates. For detailed pricing, see Image Processing Fees.

    API Format

    1. Processing upon download

    GET /<ObjectKey>?imageMogr2/format/svgc HTTP/1.1
    Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
    Date: <GMT Date>
    Authorization: <Auth String>

    2. Processing upon upload

    PUT /<ObjectKey> HTTP/1.1
    Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
    Date: GMT Date
    Authorization: Auth String
    Pic-Operations: 
    {
    "is_pic_info": 1,
    "rules": [{
        "fileid": "exampleobject",
        "rule": "imageMogr2/format/svgc"
    }]
    }
    Note:
    Pic-Operations is a JSON string. Its parameters are as described in Persistent Image Processing.

    3. Processing in-cloud data

    POST /<ObjectKey>?image_process HTTP/1.1
    Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
    Date: GMT Date
    Content-length: Size
    Authorization: Auth String
    Pic-Operations: 
    {
    "is_pic_info": 1,
    "rules": [{
        "fileid": "exampleobject",
        "rule": "imageMogr2/format/svgc"
    }]
    }
    Note:
    Authorization: Auth String. For more information, see Request Signature.
    When this feature is used by a sub-account, relevant permissions must be granted as instructed in Authorization Granularity Details.

    Parameters

    Parameter
    Description
    ObjectKey
    Object name, such as folder/sample.jpg.
    /format/<Format>
    Compression format, which is svgc
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