Sign document with ordering the signatures

GroupDocs.Signature provides with SignOptions property ZOrder that expects integer values as Z-order position. The signatures with a higher number of this property will be displayed above the others.

Here are the steps to manually adjust the ordering of signatures on the document page with GroupDocs.Signature:

Create a new instance of Signature class and pass the source document path as a constructor parameter.
Instantiate the SignOptions object with the required options and set the ZOrder property.
Call Sign method of Signature class instance and pass SignOptions to it.

Sign document with Text signature

This example shows how to add Text signature to document.

using (Signature signature = new Signature("sample.pdf"))
{
    TextSignOptions options = new TextSignOptions("John Smith")
    {
        // set signature position
        Left = 100,
        Top = 100,
        // set signature rectangle
        Width = 100,
        Height = 30,
        // set signature alignment
        // when VerticalAlignment is set the Top coordinate will be ignored.
        // Use Margin properties Top, Bottom to provide vertical offset
        VerticalAlignment = Domain.VerticalAlignment.Top,
        // when HorizontalAlignment is set the Left coordinate will be ignored.
        // Use Margin properties Left, Right to provide horizontal offset
        HorizontalAlignment = Domain.HorizontalAlignment.Right,
        Margin = new Padding() { Top = 20, Right = 20 },
        // adjust signature appearance
        // setup signature border
        Border = new Border()
        {
            Color = Color.DarkGreen,
            DashStyle = DashStyle.DashLongDashDot,
            Transparency = 0.5,
            Visible = true,
            Weight = 2
        },
        // set text color and Font
        ForeColor = Color.Red,
        Font = new SignatureFont { Size = 12, FamilyName = "Comic Sans MS" },
        // setup background
        Background = new Background()
        {
            Color = Color.LimeGreen,
            Transparency = 0.5,
            Brush = new LinearGradientBrush(Color.LimeGreen, Color.DarkGreen)
        },
        // set rotation
        RotationAngle = 45,
        // set alternative signature implementation on document page
        SignatureImplementation = TextSignatureImplementation.Image

    };
    // set up shadow options for text
    TextShadow shadow = new TextShadow();
    shadow.Color = Color.OrangeRed;
    shadow.Angle = 135;
    shadow.Blur = 5;
    shadow.Distance = 4;
    shadow.Transparency = 0.2;
    //add text shadow to signature extensions
    options.Extensions.Add(shadow);

    // specify Spreadsheet position over extension
     options.Extensions.Add(new SpreadsheetPosition(10, 10));
    // sign document to file
    signature.Sign("signed.pdf", options);
}

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.

Sign document with Text signature - advanced Sign document with XAdES Digital signature