ByteScout PDF Extractor SDK - C# - Scanned PDF to Text - ByteScout

ByteScout PDF Extractor SDK – C# – Scanned PDF to Text

  • Home
  • /
  • Articles
  • /
  • ByteScout PDF Extractor SDK – C# – Scanned PDF to Text

scanned PDF to text in C# and ByteScout PDF Extractor SDK

scanned PDF to text in C#

Here you may find thousands pre-made source code pieces for easy implementation in your own programming C# projects. ByteScout PDF Extractor SDK was made to help with scanned PDF to text in C#. ByteScout PDF Extractor SDK is the SDK that helps developers to extract data from unstructured documents, pdf, images, scanned and electronic forms. Includes AI functions like automatic table detection, automatic table extraction and restructuring, text recognition and text restoration from pdf and scanned documents. Includes PDF to CSV, PDF to XML, PDF to JSON, PDF to searchable PDF functions as well as methods for low level data extraction.

Fast application programming interfaces of ByteScout PDF Extractor SDK for C# plus the instruction and the C# code below will help you quickly learn scanned PDF to text. In order to implement this functionality, you should copy and paste code below into your app using code editor. Then compile and run your application. You can use these C# sample examples in one or many applications.

Trial version can be obtained from our website for free. It includes this and other source code samples for C#.

Try ByteScout PDF Extractor SDK today:  60 Day Free Trial (on-premise) or  Web API (on-demand version)

Program.cs
      
using System.Diagnostics; using Bytescout.PDFExtractor; // This example demonstrates the use of Optical Character Recognition (OCR) to extract text // from scanned PDF documents and raster images. // To make OCR work you should add the following references to your project: // 'Bytescout.PDFExtractor.dll', 'Bytescout.PDFExtractor.OCRExtension.dll'. namespace ScannedPdfToText { class Program { static void Main(string[] args) { // Create Bytescout.PDFExtractor.TextExtractor instance TextExtractor extractor = new TextExtractor(); extractor.RegistrationName = "demo"; extractor.RegistrationKey = "demo"; // Load sample PDF document extractor.LoadDocumentFromFile("sample_ocr.pdf"); // Enable Optical Character Recognition (OCR) // in .Auto mode (SDK automatically checks if needs to use OCR or not) extractor.OCRMode = OCRMode.Auto; // Set the location of OCR language data files extractor.OCRLanguageDataFolder = @"c:\Program Files\Bytescout PDF Extractor SDK\ocrdata\"; // Set OCR language extractor.OCRLanguage = "eng"; // "eng" for english, "deu" for German, "fra" for French, "spa" for Spanish etc - according to files in "ocrdata" folder // Find more language files at https://github.com/bytescout/ocrdata // Set PDF document rendering resolution extractor.OCRResolution = 300; // You can also apply various preprocessing filters // to improve the recognition on low-quality scans. // Automatically deskew skewed scans //extractor.OCRImagePreprocessingFilters.AddDeskew(); // Remove vertical or horizontal lines (sometimes helps to avoid OCR engine's page segmentation errors) //extractor.OCRImagePreprocessingFilters.AddVerticalLinesRemover(); //extractor.OCRImagePreprocessingFilters.AddHorizontalLinesRemover(); // Repair broken letters //extractor.OCRImagePreprocessingFilters.AddDilate(); // Remove noise //extractor.OCRImagePreprocessingFilters.AddMedian(); // Apply Gamma Correction //extractor.OCRImagePreprocessingFilters.AddGammaCorrection(); // Add Contrast //extractor.OCRImagePreprocessingFilters.AddContrast(20); // (!) You can use new OCRAnalyser class to find an optimal set of image preprocessing // filters for your specific document. // See "OCR Analyser" example. // Save extracted text to file extractor.SaveTextToFile("output.txt"); // Cleanup extractor.Dispose(); // Open result document in default associated application (for demo purpose) ProcessStartInfo processStartInfo = new ProcessStartInfo("output.txt"); processStartInfo.UseShellExecute = true; Process.Start(processStartInfo); } } }

Try ByteScout PDF Extractor SDK today:  60 Day Free Trial (on-premise) or  Web API (on-demand version)

VIDEO

ON-PREMISE VERSION INFORMATION

Get 60 Day Free Trial or Visit ByteScout PDF Extractor SDK Home Page

Explore ByteScout PDF Extractor SDK Documentation

Get ByteScout PDF Extractor SDK Free Training

WEB API

Get Your Free API Key

Explore Web API Documentation

Tutorials:

prev
next