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Here’s an example of how PDF files could be handled on Docker using Ghostscript, though the same idea could be adopted for any third party conversion tool. Note that this is using SoftekBarcodeNetStandard from NuGet. 1. Add the following to Dockerfile to install Ghostscript RUN apt-get update && apt-get install -y ghostscript 2. Use code …

You can read a barcode from a stream (TIF/JPG or PDF) in C# using the following function to convert the stream into a byte array: private static byte[] StreamToByteArray(Stream input) {    byte[] buffer = new byte[16 * 1024];    using (MemoryStream ms = new MemoryStream())    {       int read;       while ((read = input.Read(buffer, 0, buffer.Length)) > 0) …

The Android version of the SDK cannot read directly from image files but it can read from a bitmap using code similar to the following: Barcode barcode = new Barcode(); // Load your image file into a bitmap int width = bitmap.getWidth(); int height = bitmap.getHeight(); byte[] rawBytes = new byte[width * height * 4]; …