Design
Image Watermark Diagonal
Add diagonal watermarks to images with customizable angle, size, opacity, and positioning across the image
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-watermark-diagonal' \
-H 'Content-Type: application/json' \
-d '{"filename":"imageFile.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'https://api.elysiatools.com/api/upload/presign/image-watermark-diagonal' \
-H 'Content-Type: application/json' \
-d '{"filename":"watermarkImageFile.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-watermark-diagonal' \
-F 'imageFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'watermarkImageFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'diagonalAngle=45' \
-F 'scale=0.3' \
-F 'opacity=0.5' \
-F 'spacing=100' \
-F 'margin=50' \
-F 'blendMode=over' \
-F 'repeatCount=3' \
-F 'centerOnDiagonal=false' \
-F 'autoFit=false' \
-F 'stretchToFit=false'