using IronBarCode; using System.Drawing; // Reading a barcode is easy with IronBarcode! var resultFromFile = BarcodeReader.Read(@"file/barcode.png"); // From a file var resultFromBitMap = BarcodeReader.Read(new Bitmap("barcode.bmp")); // From a bitmap var resultFromImage = BarcodeReader.Read(Image.FromFile("barcode.jpg")); // From an image var resultFromPdf = BarcodeReader.ReadPdf(@"file/mydocument.pdf"); // From PDF use ReadPdf // To configure and fine-tune barcode reading, utilize the BarcodeReaderOptions class var myOptionsExample = new BarcodeReaderOptions { // Choose a reading speed from: Faster, Balanced, Detailed, ExtremeDetail // There is a tradeoff in performance as more detail is set Speed = ReadingSpeed.Balanced, // Reader will stop scanning once a single barcode is found (if set to true) ExpectMultipleBarcodes = true, // By default, all barcode formats are scanned for // Specifying a subset of barcode types to search for would improve performance ExpectBarcodeTypes = BarcodeEncoding.AllOneDimensional, // Utilize multiple threads to read barcodes from multiple images in parallel Multithreaded = true, // Maximum threads for parallelized barcode reading // Default is 4 MaxParallelThreads = 2, // The area of each image frame in which to scan for barcodes // Specifying a crop area will significantly improve performance and avoid noisy parts of the image CropArea = new Rectangle(), // Special setting for Code39 barcodes // If a Code39 barcode is detected, try to read with both the base and extended ASCII character sets UseCode39ExtendedMode = true }; // Read with the options applied var results = BarcodeReader.Read("barcode.png", myOptionsExample); // Create a barcode with one line of code var myBarcode = BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8); // After creating a barcode, we may choose to resize myBarcode.ResizeTo(400, 100); // Save our newly-created barcode as an image myBarcode.SaveAsImage("EAN8.jpeg"); Image myBarcodeImage = myBarcode.Image; // Can be used as Image Bitmap myBarcodeBitmap = myBarcode.ToBitmap(); // Can be used as Bitmap

VIDEOS

How to Read Barcodes From PDFs in C#

Name: IronBarcode
Brand: Iron Software
Availability: InStock
Rating: 4.67 (175 reviews)

Jordi Bardia

November 29, 2023

In this tutorial, we explore how to read barcodes in PDF documents using the Iron Barcode library from Iron Software. Assuming you have Iron Barcode installed, we begin by including its namespace in our program. We then create a list of integers to indicate the PDF pages we wish to scan for barcodes, selecting pages one, two, and three. Next, we instantiate the PDFBarcodeReaderOptions class, passing our page list to the constructor while setting the DPI to 150 to adjust resolution and the scale to 3.5 for barcode size. Other settings include setting the reading speed to 'detailed' for precision, specifying expected barcode types as QR codes, and allowing detection of multiple barcodes within the PDF. To perform the barcode reading, we use the ReadPDF method, providing the path to the PDF and our configured options. The program loops through the detected barcodes, printing each unique barcode to the console. This feature is highly useful for efficiently extracting barcode data from PDF documents. The tutorial concludes with an encouragement to explore Iron Software's trial subscription for further insights.

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Jordi Bardia

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Software Engineer

Jordi is most proficient in Python, C# and C++, when he isn’t leveraging his skills at Iron Software; he’s game programming. Sharing responsibilities for product testing, product development and research, Jordi adds immense value to continual product improvement. The varied experience keeps him challenged and engaged, and he says it’s one of his favorite aspects of working with Iron Software. Jordi grew up in Miami, Florida and studied Computer Science and Statistics at University of Florida.

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