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BarcodeReaderReadBarcodesFromPdfPage Method (Byte, Int32, BarcodeEncoding, BarcodeReaderBarcodeRotationCorrection, BarcodeReaderBarcodeImageCorrection)

Reads barcodes from images embedded in a single page of a PDF document.

Features granular settings for developer control to balance performance against accuracy for their given use case.

Features granular settings for developer control to balance performance against accuracy for their given use case.

Overloads of this method accept InputImage as string file paths as well as Image, Bitmap and Stream types.

Namespace:  IronBarCode
Assembly:  IronBarCode (in IronBarCode.dll) Version: 4.0.1.22591 (4.0.1.0)
Syntax
public static PagedBarcodeResult[] ReadBarcodesFromPdfPage(
	byte[] PDFData,
	int PageNumber,
	BarcodeEncoding BarcodeFormat = BarcodeEncoding.All,
	BarcodeReaderBarcodeRotationCorrection RotationCorrection = BarcodeReaderBarcodeRotationCorrection.Low,
	BarcodeReaderBarcodeImageCorrection ImageCorrection = BarcodeReaderBarcodeImageCorrection.None
)

Parameters

PDFData
Type: SystemByte
Binary data of PDF document as a byte array.
PageNumber
Type: SystemInt32
The page number of the PDF to read. PageNumber is '1 based' meaning that the first page number is 1 rather than zero.
BarcodeFormat (Optional)
Type: IronBarCodeBarcodeEncoding
The barcode encoding types to read from the PDF. By default all supported barcodes types are scanned for. Choosing one or more specific Barcode formats will improve performance significantly.
RotationCorrection (Optional)
Type: IronBarCodeBarcodeReaderBarcodeRotationCorrection
Setting to allow the barcode reader to detect and accurately read barcodes which are rotated or skewed with perspective using a Hough Transform. Default tolerance is 10 Degrees of rotation; higher levels use more CPU.
ImageCorrection (Optional)
Type: IronBarCodeBarcodeReaderBarcodeImageCorrection
Setting which can clean noisy input images by allowing barcodes to be distinguished from the rest of the image. CPU Intensive.

Return Value

Type: PagedBarcodeResult
An Array of PagedBarcodeResult. Array length will be zero if no barcodes were found.
See Also