PDF Tools
PDF 在线添加签名
在 PDF 页面上添加可见文字签名或签名图片并下载新文件
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-add-signature-online' \
-H 'Content-Type: application/json' \
-d '{"filename":"pdfFile.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'https://api.elysiatools.com/api/upload/presign/pdf-add-signature-online' \
-H 'Content-Type: application/json' \
-d '{"filename":"signatureImage.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-add-signature-online' \
-F 'pdfFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'signatureType=text' \
-F 'signatureImage=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'signatureText=Approved' \
-F 'reason=Review complete' \
-F 'location=' \
-F 'includeDate=true' \
-F 'pageTarget=last' \
-F 'pageNumber=1' \
-F 'position=bottom-right' \
-F 'customX=36' \
-F 'customY=36' \
-F 'boxWidth=180' \
-F 'boxHeight=72' \
-F 'signatureColor=#1f2937'