Obtain document history information

GroupDocs.Signature allows to get document history information about processed changes that include list of ProcessLog. Each history log record contains following information :

  • date/time of processed change.
  • type of document process change. See ProcessType
  • description of change
  • quantity of succeeded and failed signatures

Analyze document process history information

The following code snippet demonstrates how to obtain information about document historical changes and analyze them.

final Signature signature = new Signature("sampleSigned.pdf");
	try /*JAVA: was using*/
		IDocumentInfo documentInfo = signature.getDocumentInfo();
		// display document process history information
		System.out.print("Document Process logs information: count = "+documentInfo.getProcessLogs().size());
		for (ProcessLog processLog : documentInfo.getProcessLogs())
			System.out.print(" - operation ["+processLog.getType()+"}] on "+processLog.getDate().toString()+"}. Succedded/Failed "+processLog.getSucceeded()+"/"+processLog.getFailed()+". Message: "+processLog.getMessage()+" : ");
			if (processLog.getSignatures() != null)
				for (BaseSignature logSignature : processLog.getSignatures())
					System.out.print("\t\t -"+logSignature.getSignatureType()+" #"+logSignature.getSignatureId()+" at "+logSignature.getTop()+" x "+logSignature.getLeft()+" pos;");
	} catch (Exception e){
		throw new GroupDocsSignatureException(e.getMessage());

More resources

GitHub Examples

You may easily run the code above and see the feature in action in our GitHub examples:

Free Online App

Along with full-featured .NET library we provide simple, but powerful free Apps.

You are welcome to eSign PDF, Word, Excel, PowerPoint documents with free to use online GroupDocs Signature App.