Read text of PDF file in asp.net

Davendra Gupta

13y2.1kLearn iOS Programming

how to Read text of PDF file in asp.net

4 Replies

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Chris D10y ago
You could try PDFDocument class (ParsePages method) from Leadtools. I am currently using this method to extract different objects from PDF documents (including Text data).
You can find more details on their own website https://www.leadtools.com/sdk/pdf.
Rahul Prasad11y ago
Here is a sample project demonstrating how to extra text and image from PDF document.

Please refer to:

https://code.msdn.microsoft.com/Extracting-text-and-image-d47ac957
Jony Green11y ago
you can try PDFLib, it's an open source, and can be used in c#. it can extract text from pdf, and supports multiple languages. i find another pdf text extractor can be used in asp.net https://www.iditect.com/tutorial/pdf-to-text/, you can try to have a performance.
Raj Kumar13y ago
// create an instance of the pdfparser class
PDFParser pdfParser = new PDFParser();

// extract the text
String result = pdfParser.ExtractText(pdfFile);

OR

form1.Controls.Clear();
form1.Controls.Add(grdv1);
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
grdv1.RenderControl(htw);
string html = "<html>" + sw.ToString() + "</body>";
Response.Clear();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=Export.pdf");
Document document = new Document(PageSize.A4, 80, 50, 30, 65);
PdfWriter writer = PdfWriter.GetInstance(document, Response.OutputStream);
document.AddAuthor("Hua Min");
document.AddSubject("Export To pdf");
document.Open();
string tempFile = Path.GetTempFileName();
using (StreamWriter tempwriter = new StreamWriter(tempFile, false))
{
tempwriter.Write(html);
}
HtmlParser.Parse(document, tempFile);
document.Close();
writer.Close();
File.Delete(tempFile);
writer = null;
document = null;
Response.End();