Sign document with Barcode signature - advanced
GroupDocs.Signature provides BarcodeSignOptions class to specify additional options for Barcode signature to specify following signature appearance
- signature alignment (setHorizontalAlignment, setVerticalAlignment)
- margins (setMargin)
- border and background settings (setBorder, setBackground)
- font and colors (setFont, setForeColor)
Here are the steps to add Barcode signature into document with GroupDocs.Signature:
- Create new instance of Signature class and pass source document path as a constructor parameter.
- Instantiate the BarcodeSignOptions object with all required additional options.
- Call sign method of Signature class instance and pass BarcodeSignOptions to it.
- Analyze SignResult result to check newly created signatures if needed.
This example shows how to add Barcode signature to document. See SignResult
// instantiating the signature object
final Signature signature = new Signature("sample.docx");
try
{
// setup options with text of signature
BarcodeSignOptions signOptions = new BarcodeSignOptions("12345678");
// setup Barcode encoding type
signOptions.setEncodeType(BarcodeTypes.Code128);
// set signature position
signOptions.setLeft(100);
signOptions.setTop(100);
// when VerticalAlignment is set the Top coordinate will be ignored.
// Use Margin properties Top, Bottom to provide vertical offset
signOptions.setVerticalAlignment(VerticalAlignment.Top);
// when HorizontalAlignment is set the Left coordinate will be ignored.
// Use Margin properties Left, Right to provide horizontal offset
signOptions.setHorizontalAlignment(HorizontalAlignment.Right);
Padding padding = new Padding();
padding.setLeft(20);
padding.setTop(20);
signOptions.setMargin(padding);
// adjust signature appearance
// setup signature border
Border border = new Border();
border.setColor(Color.GREEN);
border.setDashStyle(DashStyle.DashLongDashDot);
border.setWeight(2);
border.setTransparency(0.5);
border.setVisible(true);
signOptions.setBorder(border);
// set text color and Font
signOptions.setForeColor(Color.RED);
SignatureFont font = new SignatureFont();
font.setSize(12);
font.setFamilyName("Comic Sans MS");
signOptions.setFont(font);
// specify position of text with barcode line
signOptions.setCodeTextAlignment(CodeTextAlignment.Above);
// setup background
Background background = new Background();
background.setColor(Color.GREEN);
background.setTransparency(0.5);
background.setBrush(new LinearGradientBrush(Color.GREEN, Color.DARK_GRAY,0));
signOptions.setBackground(background);
// sign document
ignResult signResult = signature.sign("SampleSigned.docx", signOptions);
// analyzing result
System.out.print("List of newly created signatures:");
int number = 1;
for(BaseSignature temp : signResult.getSucceeded())
{
System.out.print("Signature #"+ number++ +": Type: "+temp.getSignatureType()+" Id:"+temp.getSignatureId()+
",Location: "+temp.getLeft()+"x"+temp.getTop()+". Size: "+temp.getWidth()+"x"+temp.getHeight());
}
}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:
- GroupDocs.Signature for .NET examples, plugins, and showcase
- GroupDocs.Signature for Java examples, plugins, and showcase
- Document Signature for .NET MVC UI Example
- Document Signature for .NET App WebForms UI Example
- Document Signature for Java App Dropwizard UI Example
- Document Signature for Java Spring UI Example
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.