Extract barcodes from document page area Leave feedback
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GroupDocs.Parser provides the functionality to extract barcodes from a document page area by the getBarcodes(PageAreaOptions) method:
parser.getBarcodes(options) // returns Iterable<PageBarcodeArea>
This method returns a Java Iterable collection of PageBarcodeArea objects:
| Member | Description |
|---|---|
getPage() | The page that contains the barcode. |
getRectangle() | The rectangular area on the page that contains the barcode. |
getValue() | A string value that represents a value of the barcode page area. |
getCodeTypeName() | A string value that represents a type name of the barcode. |
Here are the steps to extract barcodes from a page area:
- Instantiate the
Parserobject for the initial document; - Check if the document supports barcodes extraction;
- Instantiate
PageAreaOptionswith the rectangular area; - Call the
getBarcodes(PageAreaOptions)method and obtain the collection ofPageBarcodeAreaobjects; - Iterate through the collection and get a barcode value.
The following example shows how to extract barcodes from the upper part of the pages (the area that contains QR codes in Barcodes.pdf):
const groupdocs = require('@groupdocs/groupdocs.parser');
// Create an instance of Parser class
const parser = new groupdocs.Parser('Barcodes.pdf');
try {
// Check if the document supports barcodes extraction
if (!parser.getFeatures().isBarcodes()) {
console.log("Document doesn't support barcodes extraction.");
} else {
// Create the options which are used for barcodes extraction
const options = new groupdocs.PageAreaOptions(
new groupdocs.Rectangle(new groupdocs.Point(400, 50), new groupdocs.Size(200, 150)));
// Extract barcodes from the page area
const it = parser.getBarcodes(options).iterator();
// Iterate over barcodes
while (it.hasNext()) {
const barcode = it.next();
// Print the page index
console.log('Page: ' + barcode.getPage().getIndex());
// Print the barcode value
console.log('Value: ' + barcode.getValue());
}
}
} finally {
parser.close();
}
process.exit(0);
The output for Barcodes.pdf:
Page: 0
Value: https://products.groupdocs.com/parser/net/
Page: 1
Value: https://products.groupdocs.com/parser/java/
NoteOnly barcodes that lie inside the rectangle are returned. Usebarcode.getRectangle()from the Extract barcodes from document example to find the barcode coordinates in your document.
Along with the full-featured library we provide simple but powerful free Apps.
You are welcome to extract data from PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, Emails and more with our Free Online Document Parser App.
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