sample code for read barcode from pdf document using node js
sample pdf document attchedfax998119547.pdf (58.7 KB)
Aspose.BarCode for Node.js via Java supports to read barcodes from image formats like JPEG, TIFF, PNG, BMP, GIF, etc., see the topic for your reference. So, you got to generate/extract the barcode images from the PDF document (by yourselves) and then pass the images to Aspose.BarCode for Node.js via Java for barcode recognitions. See the document with example code for your reference.
PS. please note, there is no Aspose.PDF for Node.js via Java API, so you have to use Aspose.PDF for Java API if you could generate and extract image from PDF pages in node.js.