how to read/write to pdf from c#

drake mclean

7y9kVisual Basic .NET

how to read & write to a pdf from c#

9 Replies

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Mageshwaran R6y ago
Hi,
Please refer the below link, it might helps you
https://www.gemboxsoftware.com/document/examples/c-sharp-read-extract-pdf-text/305
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Alan Brost7y ago
If you need PDF generation functionality for your .net application, ZetPDF is a .net SDK for adding PDF render and print support in .net applications. It is designed to solve most developer’s needs with regards to PDF rendering. Get in touch today so that we can help you. Please find the link below for all your needs.
https://zetpdf.com/
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Raheel Ahmad7y ago
Hi Mclean,
You can try ByteScout PDF SDK for this purpose, it's very simple and straighforward by using this SDK. Sample code is given as under
// Create new Document object
            Document pdfDocument = new Document();
            pdfDocument.RegistrationName = "demo";
            pdfDocument.RegistrationKey = "demo";

            // Load existing document
            pdfDocument.Load("sample.pdf");

            // Add new page to loaded document
            Page page = new Page(PaperFormat.A4);
            Font font = new Font(StandardFonts.Times, 24);
            Brush brush = new SolidBrush();
            page.Canvas.DrawString("New Page", font, brush, 20, 20);
            pdfDocument.Pages.Add(page);

            // Save document to file
            pdfDocument.Save("result.pdf");

            // Cleanup
            pdfDocument.Dispose();

            // Open document in default PDF viewer app
            Process.Start("result.pdf");
You can find the further details under this link.
https://bytescout.com/products/developer/pdfsdk/bytescoutpdf_add_text_to_existing_pdf_document.html
+1
Mohamed Abedallah7y ago
Your question is quite general, so I will try to provide a general useful answer. The easiest way to read and write PDF files is to use a toolkit.
You can use LEADTOOLS to read and manipulate PDF files (merge, parse, copy, extract, convert to and from PDF, etc..).

For example, if you want to get the text from the PDF file, the code is similar to this:
using (var document = DocumentFactory.LoadFromFile(inFile, new LoadDocumentOptions()))
{
var page = document.Pages[0];
var pageText = page.GetText();
if (pageText != null)
{
pageText.BuildText();
var text = pageText.Text;
MessageBox.Show(text);
}
else
{
MessageBox.Show("Failed!");
}
}
To write PDF, you can either save it as image, or as searchable text (or image-over-text which has both). More details can be found here:
https://www.leadtools.com/sdk/pdf
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Sanwar Ranwa7y ago
Hello Drake

Please check these Links

VIDEOS

https://www.youtube.com/watch?v=e1b9oZHByyE

https://www.youtube.com/watch?v=22C9N4WP4-s

ARTICLES

https://www.c-sharpcorner.com/blogs/reading-contents-from-pdf-word-text-files-in-c-sharp1

https://www.inliteresearch.com/barcode-recognition-sdk.php?gclid=EAIaIQobChMI0cmLhsvf3gIVhpOPCh3WrA8aEAAYASAAEgLiLfD_BwE
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Rahul Prasad7y ago
check the links below, hopefully it will help

https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/How-to-Extract-Text-from-PDF-Document-with-C-/VB.NET.html

https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/How-to-Draw-Text-in-PDF-with-Different-Styles.html
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Jignesh Kumar7y ago
Hi Drake,

You can use aspose treference which will help to convert any form from PDF or generate PDF

Please find below link for same
https://stackoverflow.com/questions/44794820/how-to-create-blank-pdf-from-scratch-using-aspose-pdf-for-net
http://www.devx.com/dotnet/working-with-aspose.pdf-for-.net.html
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Laxmidhar Sahoo7y ago
Hi drake

Add the reference of itextsharp.dll from the Nugate packages
private void button7_Click(object sender, EventArgs e)
{
ConvertImageToPdf("D://lotous.jpg", "D://lotous.pdf");
}
public static void ConvertImageToPdf(string srcFilename, string dstFilename)
{
iTextSharp.text.Rectangle pageSize = null;
using (var srcImage = new Bitmap(srcFilename))
{
pageSize = new iTextSharp.text.Rectangle(0, 0, srcImage.Width, srcImage.Height);
}
using (var ms = new MemoryStream())
{
var document = new iTextSharp.text.Document(pageSize, 0, 0, 0, 0);
iTextSharp.text.pdf.PdfWriter.GetInstance(document, ms).SetFullCompression();
document.Open();
var image = iTextSharp.text.Image.GetInstance(srcFilename);
document.Add(image);
document.Close();
File.WriteAllBytes(dstFilename, ms.ToArray());
}
}
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Chandan Prasad7y ago
Please use the iTextSharp for generating the pdf or any third party tool.

and for reading text from pdf. please go through the below link.

https://www.c-sharpcorner.com/blogs/reading-contents-from-pdf-word-text-files-in-c-sharp1
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