Source Code in C# Existing PDF to PDF/A Conversion using ItextSharp dll

Download dll:-  Itextsharp.dll

https://docs.google.com/file/d/0B9u08qcO4YhqS29yNXNLNnNnU1E/edit?usp=sharing


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using iTextSharp.text;
using iTextSharp.text.pdf;
using System.IO;
namespace test
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            PdfReader reader = new PdfReader(@"c:\\mastering_microsoft_visual_basic_net.pdf"); //INPUT Multi PDF FILE path
            Document document = new Document(reader.GetPageSize(1));
            PdfCopy copier = new PdfCopy(document, new FileStream("c:\\2.pdf", FileMode.Create)); //OUTPUT PDF/A FILE PATH AND Name
            copier.PDFXConformance = PdfWriter.PDFA1B;
            document.Open();
            copier.SetFullCompression(); // IF You need a compress a PDF/A file
            PdfDictionary outi = new PdfDictionary(PdfName.OUTPUTINTENT);
            outi.Put(PdfName.OUTPUTCONDITIONIDENTIFIER, new PdfString("sRGB IEC61966-2.1"));
            outi.Put(PdfName.INFO, new PdfString("sRGB IEC61966-2.1"));
            outi.Put(PdfName.S, PdfName.GTS_PDFA1);

            ICC_Profile icc = ICC_Profile.GetInstance(@"C:\aaa\sRGB_IEC61966-2-1_black_scaled.icc"); //Passing a .ICC FILE
            PdfICCBased ib = new PdfICCBased(icc);
            ib.Remove(PdfName.ALTERNATE);
            outi.Put(PdfName.DESTOUTPUTPROFILE, copier.AddToBody(ib).IndirectReference);

            copier.ExtraCatalog.Put(PdfName.OUTPUTINTENTS, new PdfArray(outi));

            for (int pageCounter = 1; pageCounter < reader.NumberOfPages + 1; pageCounter++)
            {
                copier.AddPage(copier.GetImportedPage(reader, pageCounter));
            }

            copier.Add(new Paragraph("This is added text"));
            copier.CreateXmpMetadata();
            document.Close();
            reader.Close();

        }
    }
}