Media
Image Background Extender
Extend image canvas with solid color background, perfect for product photos, social media content, and standardizing image dimensions
file· File resultOpen tool
Quick start
Call this tool from your code in three languages.
cURL
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/image-extend-background' \
-H 'Content-Type: application/json' \
-d '{"filename":"imageFile.ext","contentType":"application/octet-stream","size":12345}'
# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
--data-binary @/path/to/file.ext
# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/en/api/tools/image-extend-background' \
-F 'imageFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'extendMode=uniform' \
-F 'backgroundColor=#ffffff' \
-F 'uniformPadding=50' \
-F 'topPadding=0' \
-F 'rightPadding=0' \
-F 'bottomPadding=0' \
-F 'leftPadding=0' \
-F 'format=original' \
-F 'quality=90'