Delete Barcode signatures from documents Leave feedback
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GroupDocs.Signature provides BarcodeSignature class to manipulate barcode signatures and delete them from the documents over Delete method.
Please be aware that Delete method modifies the same document that was passed to constructor of Signature class.
Here are the steps to delete Barcode signature from the document with GroupDocs.Signature:
- Create new instance of Signature class and pass source document path as a constructor parameter;
- Instantiate BarcodeSearchOptions object with desired properties;
- Call Search method to obtain list of BarcodeSignature;
- Select from list BarcodeSignature object(s) that should be removed from the document;
- Call Signature object Delete method and pass one or several signatures to it.
This example shows how to delete Barcode signature that was found using Search method.
const filePath = Constants.SAMPLE_PDF_SIGNED;
const fileName = path.basename(filePath);
const outputDirectory = path.join(Constants.OutputPath, 'DeleteBarcode');
if (!fs.existsSync(outputDirectory)) {
fs.mkdirSync(outputDirectory, { recursive: true });
}
// Copy source file since the delete method works with the same Document
const outputFilePath = path.join(outputDirectory, fileName);
fs.copyFileSync(filePath, outputFilePath);
const signature = new signatureLib.Signature(outputFilePath);
const options = new signatureLib.BarcodeSearchOptions();
// Search for Barcode signatures in the document
const signatures = signature.search(signatureLib.BarcodeSignature.class, options).toArray();
if (signatures.length > 0) {
const barcodeSignature = signatures[0];
const isDeleted = signature.delete(outputFilePath, barcodeSignature);
const barcodeText = barcodeSignature.getText();
const encodeTypeName = barcodeSignature.getEncodeType().getTypeName();
if (isDeleted) {
console.log(
`Signature with Barcode '${barcodeText}' and encode type '${encodeTypeName}' was successfully deleted from the document '${fileName}'.`
);
} else {
console.log(
`Failed to delete the signature! Barcode '${barcodeText}' with encode type '${encodeTypeName}' was not removed from the document '${fileName}'.`
);
}
}
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 the full-featured .NET library, we provide simple but powerful free online apps.
To sign PDF, Word, Excel, PowerPoint, and other documents you can use the online apps from the GroupDocs.Signature App Product Family.
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