How to extract data from pdf document in C#

To extract data from a PDF in C#, you typically use a library like iText7 or PdfPig.

using iText7:

using iText.Kernel.Pdf;

using iText.Kernel.Pdf.Canvas.Parser;

string text = "";

using (PdfReader reader = new PdfReader("sample.pdf"))

using (PdfDocument pdf = new PdfDocument(reader))

{

for (int i = 1; i <= pdf.GetNumberOfPages(); i++)

{

text += PdfTextExtractor.GetTextFromPage(pdf.GetPage(i));

}

}

Console.WriteLine(text);

Install via NuGet:

Install-Package itext7

• Works well for text-based PDFs

• For scanned PDFs, use OCR tools like Tesseract OCR

You can use libraries like iText7 or PdfSharp in C# to read and extract text or data from PDF files easily. Try it out with a small test PDF!

Install-Package itext7

using iText.Kernel.Pdf;

using iText.Kernel.Pdf.Canvas.Parser;

using iText.Kernel.Pdf.Canvas.Parser.Listener;

using System;

class Program

{

    static void Main(string[] args)

    {

        string pdfPath = "sample.pdf";

        using (PdfReader reader = new PdfReader(pdfPath))

        using (PdfDocument pdf = new PdfDocument(reader))

        {

            int numberOfPages = pdf.GetNumberOfPages();

            for (int i = 1; i <= numberOfPages; i++)

            {

                ITextExtractionStrategy strategy = new SimpleTextExtractionStrategy();

                string text = PdfTextExtractor.GetTextFromPage(pdf.GetPage(i), strategy);

                Console.WriteLine($"--- Page {i} ---");

                Console.WriteLine(text);

            }

        }

    }

}