How to read Text and images from a PDF file c#

 In this article, we will talk about, how wer can read text and images from a pdf file c# open source library.

To read text and images from a PDF file one by one in C#, you can use a PDF library such as iTextSharp or PdfSharp.

iTextSharp is a popular library for creating and manipulating PDF files content , It allows developers to generate PDF documents from scratch, as well as modify existing PDFs. 

The library provides a wide range of features, such as adding text, images, and tables, creating bookmarks, and encrypting and digitally signing PDF documents. 

iTextSharp is a popular tool for generating dynamic PDF documents in .NET applications.

using iTextSharp.text.pdf;
using iTextSharp.text;
using System.Drawing;

string filePath = "path/to/pdf/file.pdf";

PdfReader reader = new PdfReader(filePath);

for (int page = 1; page <= reader.NumberOfPages; page++)
{
    PdfDictionary pageDictionary = reader.GetPageN(page);

    // Extract text from the current page
    string pageText = PdfTextExtractor.GetTextFromPage(reader, page);

    // Get all the images from the current page
    RenderFilter[] filters = new RenderFilter[1];
    filters[0] = new RenderFilter(RenderFilter[] excludeList, TextRenderMode mode);
    ImageRenderInfo[] imageInfos = PdfImageObject.GetImageRenderInfo(pageDictionary);

    // Iterate through the imageInfos and extract the images
    foreach (ImageRenderInfo imageInfo in imageInfos)
    {
        PdfImageObject imageObject = imageInfo.GetImage();
        Image image = imageObject.GetDrawingImage();
        // Process the image as needed
    }
}

reader.Close();