How to Read Barcodes and QR Codes Using OCR in C# Kannapat Udonpant Updated:August 19, 2025 Download IronOCR NuGet Download DLL Download Windows Installer Start Free Trial Copy for LLMs Copy for LLMs Copy page as Markdown for LLMs Open in ChatGPT Ask ChatGPT about this page Open in Gemini Ask Gemini about this page Open in Grok Ask Grok about this page Open in Perplexity Ask Perplexity about this page Share Share on Facebook Share on X (Twitter) Share on LinkedIn Copy URL Email article Unlock the full potential of your C# applications by watching our tutorial on using IronOCR to effortlessly integrate barcode and QR code reading from PDF documents, and start enhancing your projects today! more... In this tutorial, we delve into the process of reading barcodes and QR codes from PDF documents using IronOCR in C#. The tutorial begins with the installation of IronOCR in the project using a package manager. We then proceed to import IronOCR and set up the necessary configurations, including the license key, to unlock the library's full features. The tutorial explains how to initialize the Iron Tesseract OCR engine and configure it to read barcodes using the OCR PDF input class. By loading a PDF document containing barcodes, the OCR extracts and prints the barcode data in the console. Similarly, the tutorial covers the extraction of QR codes from another PDF document. The step-by-step guide illustrates how IronOCR simplifies the integration of barcode and QR code reading functionalities into C# applications. The tutorial concludes by encouraging developers to explore the capabilities of IronOCR by signing up for a trial and downloading the package. This resource is ideal for developers seeking to enhance their applications with robust code reading features.
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