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    11. Signing
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    13. Sign document with Stamp signature - advanced

    Sign document with Stamp signature - advanced

    GroupDocs.Signature provides StampSignOptions class with additional properties to specify different options for Stamp Signature. This signature type implements stamps with different implementation, forms, lines etc. Each Stamp option contains inner and outer lines. Inner lines represent vertical lines inside the stamp, when outer lines represent circles (or rectangles based on stamp type) around stamp with own text, border settings, background etc

    Here are the steps to add Stamp signature into document with GroupDocs.Signature:

    • Create new instance of Signature class and pass source document path as a constructor parameter.
    • Instantiate the StampSignOptions object according to your requirements and specify Text Signature options.
    • Call sign method of Signature class instance and pass StampSignOptions to it.
    • Analyze SignResult result to check newly created signatures if needed.

    This example shows how to add Stamp signature to document.

    Signature signature = new Signature("sample.pdf");
// setup options with text of signature
StampSignOptions signOptions = new StampSignOptions();
 
signOptions.setHeight(300);
signOptions.setWidth(300);
 
signOptions.setVerticalAlignment(VerticalAlignment.Bottom);
signOptions.setHorizontalAlignment(HorizontalAlignment.Right);
Padding padding = new Padding();
padding.setRight(10);
padding.setBottom(10);
signOptions.setMargin(padding);
Background background = new Background();
background.setColor( Color.ORANGE);
signOptions.setBackground(background);
signOptions.setBackgroundColorCropType(StampBackgroundCropType.OuterArea);
signOptions.setImageFilePath(Constants.ImageStamp);
signOptions.setBackgroundImageCropType(StampBackgroundCropType.InnerArea);
signOptions.setAllPages(true);
 
 
//add few outer round lines
StampLine outerLine1 = new StampLine();
outerLine1.setText("* European Union *");
outerLine1.setTextRepeatType(StampTextRepeatType.FullTextRepeat);
SignatureFont signatureFont1 = new SignatureFont();
signatureFont1.setSize(12);
signatureFont1.setFamilyName("Arial");
outerLine1.setFont(signatureFont1);
outerLine1.setHeight(30);
outerLine1.setTextBottomIntent(6);
outerLine1.setTextColor(Color.WHITE);
outerLine1.setBackgroundColor(Color.BLUE);
signOptions.getOuterLines().add(outerLine1);
 
StampLine outerLine2 = new StampLine();
outerLine2.setHeight(2);
outerLine2.setBackgroundColor(Color.WHITE);
signOptions.getOuterLines().add(outerLine2);
 
StampLine outerLine3 = new StampLine();
outerLine3.setText("* Entrepreneur *");
outerLine3.setTextColor(Color.BLUE);
outerLine3.setTextRepeatType(StampTextRepeatType.FullTextRepeat);
SignatureFont signatureFont3 = new SignatureFont();
signatureFont3.setSize(15);
outerLine3.setFont(signatureFont3);
outerLine3.setHeight(30);
outerLine3.setTextBottomIntent(8);
Border innerBorder3 = new Border();
innerBorder3.setColor(Color.DARK_GRAY);
innerBorder3.setDashStyle(DashStyle.Dot);
outerLine3.setInnerBorder(innerBorder3);
Border outerBorder3 = new Border();
outerBorder3.setColor(Color.BLUE);
outerLine3.setOuterBorder(outerBorder3);
signOptions.getOuterLines().add(outerLine3);
 
 
//Inner square lines
StampLine innerLine1 = new StampLine();
innerLine1.setText("John");
innerLine1.setTextColor(Color.RED);
SignatureFont signFont1 = new SignatureFont();
signFont1.setSize(20);
signFont1.setBold(true);
innerLine1.setFont(signFont1);
innerLine1.setHeight(40);
signOptions.getInnerLines().add(innerLine1);
 
StampLine innerLine2 = new StampLine();
innerLine2.setText("Smith");
innerLine2.setTextColor(Color.RED);
SignatureFont signFont2 = new SignatureFont();
signFont2.setSize(20);
signFont2.setBold(true);
innerLine2.setFont(signFont2);
innerLine2.setHeight(40);
signOptions.getInnerLines().add(innerLine2);
 
StampLine innerLine3 = new StampLine();
innerLine3.setText("SSN 1230242424");
innerLine3.setTextColor(Color.MAGENTA);
SignatureFont signFont3 = new SignatureFont();
signFont3.setSize(12);
signFont3.setBold(true);
innerLine3.setFont(signFont3);
innerLine3.setHeight(40);
signOptions.getInnerLines().add(innerLine3);
 
// sign document
SignResult signResult = signature.sign("signed.pdf", 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());
}

    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.

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