Gets or sets flag to grab Barcode image content of signature on document page.
If this flag is set true, Barcode signature image content will keep raw image data by required format BarcodeSearchOptions.return_content_type.
By default this option is disabled.
Specifies file type of returned image content of the Barcode signature when ReturnContent property is enabled.
By default it set to Null. That means to return Barcode image content in original format.
This image format is specified at BarcodeSignature.format Possible supported values are: FileType.JPEG, FileType.PNG, FileType.BMP.
If provided format is not supported than Barcode image content in .png format will be returned.