Advanced search for Text signatures

GroupDocs.Signature provides TextSearchOptions class to specify different options to search for Text Signatures.

Here are the steps to search for text signatures within the document with GroupDocs.Signature:

This example shows how to make advanced search for Text signature in the document.

Signature signature = new Signature("sample.pdf");
PagesSetup page = new  PagesSetup();
TextSearchOptions options = new TextSearchOptions();
options.setText("John Smith");
// search for text signatures in document
List<TextSignature> signatures =,options);
System.out.print("\nSource document contains following text signature(s).");
// enumerate all signature for output
//foreach to while statements conversion
    for (TextSignature sign : signatures)
        if (sign != null)
            System.out.print("Found Text signature at page "+sign.getPageNumber()+" with type ["+sign.getSignatureImplementation()+"] and text '"+sign.getText()+"'.");
            System.out.print("Location at "+sign.getLeft()+"-"+sign.getTop()+". Size is "+sign.getWidth()+"x"+sign.getHeight()+".");
catch (Exception ex)
    System.out.print("System Exception: " + ex.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.