ln.pdfstamp/ln.pdfstamp/pdfstamp.cs

// /**
//  * File: pdfstamp.cs
//  * Author: haraldwolff
//  *
//  * This file and it's content is copyrighted by the Author and / or copyright holder.
//  * Any use wihtout proper permission is illegal and may lead to legal actions.
//  *
//  *
//  **/
using System;
using ln.types;
using iTextSharp.text.pdf;
using System.IO;
using ln.logging;
using iTextSharp.text;

namespace ln.pdfstamp
{
    public class PDFStamp
    {
        public static void Main(String[] args)
        {
            ArgumentContainer argumentContainer = new ArgumentContainer();
            argumentContainer.Add(new Argument('x', null, "0"));
            argumentContainer.Add(new Argument('y', null, "0"));
            argumentContainer.Add('s', "stamp", null);
            argumentContainer.Add('o', "output", ".");
            argumentContainer.Add('e', "extension", ".stamped");
            argumentContainer.Add('d', "dpi", "72");
            argumentContainer.Add('w', "width", null);
            argumentContainer.Add('h', "height", null);
            argumentContainer.Add((char)0, "daemon");

            argumentContainer.Parse(args);

            if (argumentContainer["daemon"].IsSet)
            {
                Daemon daemon = new Daemon();
                daemon.Start();
                return;
            }



            Image stampImage = Image.GetInstance(Path.GetFullPath(argumentContainer['s'].Value));
            if (stampImage == null)
            {
                throw new FileNotFoundException(argumentContainer['s'].Value);
            }

            float lx = (float)(argumentContainer['x'].DoubleValue / 25.4 * 72);
            float ly = (float)(argumentContainer['y'].DoubleValue / 25.4 * 72);

            double stampDpiX = stampImage.DpiX == 0 ? 72 : stampImage.DpiX; // / argumentContainer['d'].DoubleValue;
            double stampDpiY = stampImage.DpiY == 0 ? 72 : stampImage.DpiY; // / argumentContainer['d'].DoubleValue;

            double stampWidth = stampImage.Width / stampDpiX * 25.4;
            double stampHeight = stampImage.Height / stampDpiY * 25.4;

            Logging.Log(LogLevel.DEBUG, "Stamp: {0}/{1}", stampWidth, stampHeight);

            if (argumentContainer['w'].HasValue && argumentContainer['h'].HasValue)
            {
                Logging.Log(LogLevel.DEBUG, "WH");

                stampWidth = (float)argumentContainer['w'].DoubleValue;
                stampHeight = (float)argumentContainer['h'].DoubleValue;
            }
            else if (argumentContainer['w'].HasValue && !argumentContainer['h'].HasValue)
            {
                Logging.Log(LogLevel.DEBUG, "W");

                stampHeight *= argumentContainer['w'].DoubleValue / stampWidth;
                stampWidth = (float)argumentContainer['w'].DoubleValue;
            }
            else if (!argumentContainer['w'].HasValue && argumentContainer['h'].HasValue)
            {
                Logging.Log(LogLevel.DEBUG, "H");

                stampWidth *= argumentContainer['h'].DoubleValue / stampHeight;
                stampHeight = (float)argumentContainer['h'].DoubleValue;
            }

            stampWidth = stampWidth / 25.4 * 72.0;
            stampHeight = stampHeight / 25.4 * 72.0;

            Logging.Log(LogLevel.DEBUG, "Stamp: {0}/{1}",stampWidth,stampHeight);

            foreach (string filename in argumentContainer.AdditionalArguments)
            {
                string outputFilename = Path.Combine(
                    argumentContainer['o'].Value,
                    string.Format("{0}{1}.pdf",Path.GetFileNameWithoutExtension(filename), argumentContainer['e'].Value)
                    );

                Logging.Log(LogLevel.INFO, "{0} -> {1}", filename, outputFilename);

                using (FileStream outputStream = new FileStream(outputFilename, FileMode.Create))
                {
                    PdfReader pdfReader = new PdfReader(filename);
                    PdfStamper pdfStamper = new PdfStamper(pdfReader, outputStream);


                    for (int p = 0; p < pdfReader.NumberOfPages; p++)
                    {
                        Rectangle pageSize = pdfReader.GetPageSize(p + 1);
                        PdfContentByte overContent = pdfStamper.GetOverContent(p+1);

                        overContent.AddImage(stampImage, (float)stampWidth, 0, 0, (float)stampHeight, lx, (float)(pageSize.Height - ly - stampHeight));
                    }

                    pdfStamper.Close();
                    pdfReader.Close();

                    outputStream.Close();
                }
            }


        }

        public static void Stamp(Stream pdfStream,Image stampImage,float left,float top,float width,Stream outputStream)
        {
            float lx = (float)(left / 25.4 * 72);
            float ly = (float)(top / 25.4 * 72);

            double stampDpiX = stampImage.DpiX == 0 ? 72 : stampImage.DpiX; // / argumentContainer['d'].DoubleValue;
            double stampDpiY = stampImage.DpiY == 0 ? 72 : stampImage.DpiY; // / argumentContainer['d'].DoubleValue;

            double stampWidth = stampImage.Width / stampDpiX * 25.4;
            double stampHeight = stampImage.Height / stampDpiY * 25.4;

            Logging.Log(LogLevel.DEBUG, "Stamp: (pre  ) {0}/{1}", stampWidth, stampHeight);

            stampHeight = stampHeight * width / stampWidth;
            stampWidth = width;

            stampWidth = stampWidth / 25.4 * 72.0;
            stampHeight = stampHeight / 25.4 * 72.0;

            Logging.Log(LogLevel.DEBUG, "Stamp: (final) {0}/{1}", stampWidth, stampHeight);

            PdfReader pdfReader = new PdfReader(pdfStream);
            PdfStamper pdfStamper = new PdfStamper(pdfReader, outputStream);


            for (int p = 0; p < pdfReader.NumberOfPages; p++)
            {
                Rectangle pageSize = pdfReader.GetPageSize(p + 1);
                PdfContentByte overContent = pdfStamper.GetOverContent(p + 1);

                overContent.AddImage(stampImage, (float)stampWidth, 0, 0, (float)stampHeight, lx, (float)(pageSize.Height - ly - stampHeight));
            }

            pdfStamper.Close();
            pdfReader.Close();
        }

    }
}