Sign document with ordering the signatures Leave feedback
com.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 com.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.
This example adds a barcode and a QR code that overlap. The barcode has the higher ZOrder, so it is drawn on top.
Signature signature = new Signature("sample.pdf");
try {
// create several signatures that intersect
// #1 barcode options: this signature is placed on top
BarcodeSignOptions options1 = new BarcodeSignOptions("12345678");
options1.setEncodeType(BarcodeTypes.Code128);
options1.setLeft(100);
options1.setTop(100);
options1.setWidth(100);
options1.setHeight(100);
options1.setZOrder(2);
// #2 QR code options: this signature is placed below
QrCodeSignOptions options2 = new QrCodeSignOptions("12345678");
options2.setEncodeType(QrCodeTypes.QR);
options2.setLeft(150);
options2.setTop(150);
options2.setZOrder(1);
List<SignOptions> options = new ArrayList<SignOptions>();
options.add(options1);
options.add(options2);
// sign document to file
SignResult signResult = signature.sign("signed.pdf", options);
System.out.println("Source document signed successfully with " + signResult.getSucceeded().size() + " signature(s).");
} finally {
signature.dispose();
}
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
Along with full-featured Java 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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