Working with Digital Signature

Introduction

GroupDocs.Signature Cloud REST API supports to add Digital Signature to a document. It provides methods to create Digital Signature in Document Pages with different options of Certificate type, location, alignment, font, margins and appearances by using Signature Options Object data in request body.

Add Digital Signature to Document

You can create Digital Signature on Document provided by fileName and document folder (if required) using following API. It expects Signature Options Object data in request body.

It returns an object which contains document name, folder location and process result.

Resource

The following GroupDocs.Signature Cloud REST API resource has been used in the example to add Digital signature to a document.

cURL Example

curl -v "https://api.groupdocs.cloud/v1/signature/01_pages.pdf/digital" \
-X POST \
-H "Content-Type: application/json" \
-H "Accept: application/json" -d "{"Visible": true,"Password": "password","CertificateGuid": "temp.pfx","ImageGuid": "signature.jpg","Left": 10,"Top": 10,"Width": 40,"Height": 10,"LocationMeasureType": "Millimeters","SizeMeasureType": "Millimeters","RotationAngle": 0,"HorizontalAlignment": "Right","VerticalAlignment": "Bottom","Margin": {"All": 10,"Left": 10,"Top": 10,"Right": 10,"Bottom": 10},"MarginMeasureType": "Millimeters","Opacity": 0.5,"SignAllPages": true,"DocumentPageNumber": 1,"OptionsType": "PdfSignDigitalOptionsData"}" \
-H "authorization: Bearer rf1Wyp3-Cz_xukjKqvzF-OMwYvhJcl0rJ6CQ0IgQbZwdSGTKYJziBpGNeDdzGSwwXgsRLCCfPLhHJBKPv8dzqX3tGA8n8SA4tXhLdnGh-hws2gQgmCWEjF0RpzEdJA6jh6tGZyOSAa2GlTrLhuflBwjMB5-dc8JwRmI-ssOiXkO3fSRxnwWuWih24Co8-n8elsun4HxZVMqCzXepAiXBV9UBeUktV_PLclri_lTJEnDzoJRzfRyDigjb2-luODo9aX8DFseboggoCIMKDoyLPSVHnFXgs5EWV2aQ_DgRm_D6UPn2T1Gn7OAIe-T8aA7ypDCoR-wuTJdB8o7T0f2I8K-8FrXCy2Sgb8B5QPpAOcLdiBBqFxRdk8f2c67J-rSbm2WUPWK65pbLa8NGHHdIRKuiI87NmphWuKc39a_zcgEg4MnHSlDeephmStnLS8OayQObNdLQBYAmoeQeVpZRy9t9bcU"

{
  "fileName": "one-page.pdf",
  "folder": "Output",
  "code": 200,
  "status": "OK"
}

SDKs

The API is completely independent of your operating system, database system or development language. We provide and support API SDKs in many development languages in order to make it even easier to integrate. You can see our available SDKs list here.

Add Digital Signature to Document

Add Digital Signature to Document at Provided URL

You can creates Digital Signature for document at provided URL with signature-options-objects. It retrieves file from specified URL and tries to detect file type when fileName parameter is not specified. It saves retrieved file in storage, by using fileName and folder parameters to specify desired file name and folder to save file. When file with specified name already exists in storage new unique file name will be used for file. It expects Signature Options Object data in request body and returns object which contains document name and folder location.

Resource

The following GroupDocs.Signature Cloud REST API resource has been used in the example to add Digital signature to a document at provided URL.

cURL Example

curl -v "https://api.groupdocs.cloud/v1/signature/digital?url#https%3a%2f%2fwww.dropbox.com%2fs%2fumokluz338w4ng7%2fone-page.docx%3fdl%3d1" \
-X POST \
-H "Content-Type: application/json" \
-H "Accept: application/json" -d "{"Margin": {"All": 10,"Left": 10,"Top": 10,"Right": 10,"Bottom": 10},"DocumentPageNumber": 1,"SheetNumber": 1,"RowNumber": 1,"ColumnNumber": 2,"Password":"password","CertificateGuid":"temp.pfx","ImageGuid":"signature.jpg","Left": 1,"Top": 1,"Width": 40,"Height": 40,"LocationMeasureType": "Pixels","SizeMeasureType":"Millimeters","RotationAngle": 0,"HorizontalAlignment": "Left","VerticalAlignment": "Bottom","MarginMeasureType":"Pixels","Opacity": 0.5,"SignAllPages": true,"OptionsType": "WordsSignDigitalOptionsData"}" \
-H "authorization: Bearer rf1Wyp3-Cz_xukjKqvzF-OMwYvhJcl0rJ6CQ0IgQbZwdSGTKYJziBpGNeDdzGSwwXgsRLCCfPLhHJBKPv8dzqX3tGA8n8SA4tXhLdnGh-hws2gQgmCWEjF0RpzEdJA6jh6tGZyOSAa2GlTrLhuflBwjMB5-dc8JwRmI-ssOiXkO3fSRxnwWuWih24Co8-n8elsun4HxZVMqCzXepAiXBV9UBeUktV_PLclri_lTJEnDzoJRzfRyDigjb2-luODo9aX8DFseboggoCIMKDoyLPSVHnFXgs5EWV2aQ_DgRm_D6UPn2T1Gn7OAIe-T8aA7ypDCoR-wuTJdB8o7T0f2I8K-8FrXCy2Sgb8B5QPpAOcLdiBBqFxRdk8f2c67J-rSbm2WUPWK65pbLa8NGHHdIRKuiI87NmphWuKc39a_zcgEg4MnHSlDeephmStnLS8OayQObNdLQBYAmoeQeVpZRy9t9bcU"
 
{
  "fileName": "one-page.docx",
  "folder": "Output",
  "Code": 200,
  "Status" : "OK"
}

SDKs

The API is completely independent of your operating system, database system or development language. We provide and support API SDKs in many development languages in order to make it even easier to integrate. You can see our available SDKs list here.

Add Digital Signature to Document at specified URL