Document Tools
PDF水印工具
支持文档级/页级文字或图形水印，含旋转和透明度控制
file· 文件结果打开工具
快速开始
用三种语言从你的代码中调用此工具。
cURL
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/pdf-watermark-tool' \
-H 'Content-Type: application/json' \
-d '{"filename":"inputPdf.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/zh/api/tools/pdf-watermark-tool' \
-F 'inputPdf=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'mode=document' \
-F 'pageSelection=1,3,5-7' \
-F 'watermarkType=text' \
-F 'watermarkText=CONFIDENTIAL' \
-F 'shapeType=rectangle' \
-F 'rotateDeg=-30' \
-F 'opacity=0.2' \
-F 'fontSize=48' \
-F 'watermarkColor=#D93838' \
-F 'tile=true'