Reading Barcode from PDF documentusing C# is available?

pq scan

Question:

Hi, can anyone help me? I have some barcode in PDF document, and I'd like to decode these barcodes out. Does your .net barcode reader support this?

---- Johnson

pq scan

Answer:

Hi, Johnson.

Our .NET Barcode Scanner is only able to read barcode from images, such as .bmp, .png and so on. If you want to read barcode from PDF, you can use our PDF to Image Library to translate PDF page to image first, and then decode the barcode from image.

Here we provide steps of reading barcode from PDF using .NET Barcode Scanner SDK and .NET PDF to Image SDK.

using System;
using System.Drawing;
using PQScan.PDFToImage;
using PQScan.BarcodeScanner;


namespace BarcodeReaderQuestion
{
    class Program
    {
        static void Main(string[] args)
        {
            //step 1: 
            //convert PDF to image.
            PDFDocument pdf = new PDFDocument();
            pdf.LoadPDF("sample.pdf");
            //get first page to image
            Bitmap bmp = pdf.ToImage(0);

            //step 2: 
            //scan barcode from image
            BarcodeResult[] results = BarCodeScanner.Scan(bmp);
            foreach (BarcodeResult result in results)
            {
                Console.WriteLine("barcode data:" + result.Data);
                Console.Write(" barcode type:" + result.BarType.ToString());
            }
        }
    }
}

Hope the C# code can be helpful.

---- pqScan Support Team

Can I Read Barcode in PDF document using C#?