using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Office.Core;
using PowerPoint = Microsoft.Office.Interop.PowerPoint;
 
namespace readPPT
{
    class Program
    {
        static void Main(string[] args)
        {
            Microsoft.Office.Interop.PowerPoint.Application PowerPoint_App = new Microsoft.Office.Interop.PowerPoint.Application();
            Microsoft.Office.Interop.PowerPoint.Presentations multi_presentations = PowerPoint_App.Presentations;
            Microsoft.Office.Interop.PowerPoint.Presentation presentation = multi_presentations.Open(@"C:\PPT\myPowerpoint.pptx");
            string presentation_text = "";
            for (int i = 0; i < presentation.Slides.Count; i++)
            {
                foreach (var item in presentation.Slides[i+1].Shapes)
                {
                    var shape = (PowerPoint.Shape)item;
                    if (shape.HasTextFrame == MsoTriState.msoTrue)
                    {
                        if (shape.TextFrame.HasText == MsoTriState.msoTrue)
                        {
                            var textRange = shape.TextFrame.TextRange;
                            var text = textRange.Text;
                            presentation_text += text+" ";
                        }
                    }
                }
            }
            PowerPoint_App.Quit();
            Console.WriteLine(presentation_text);
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices.ComTypes;
 
namespace readDOC
{
    class Program
    {
        static void Main(string[] args)
        {
            Microsoft.Office.Interop.Word.Application word = new Microsoft.Office.Interop.Word.Application();
            object miss = System.Reflection.Missing.Value;
            object path = @"C:\DOC\myDocument.docx";
            object readOnly = true;
            Microsoft.Office.Interop.Word.Document docs = word.Documents.Open(ref path, ref miss, ref readOnly, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss);
            string totaltext = "";
            for (int i = 0; i < docs.Paragraphs.Count; i++)
            {
                   totaltext += " \r\n "+ docs.Paragraphs[i+1].Range.Text.ToString();
            }
            Console.WriteLine(totaltext);
            docs.Close();
            word.Quit();
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Diagnostics;
using System.Text.RegularExpressions;
 
namespace ImgResize
{
    class Program
    {
        static void Main(string[] args)
        {
            //get an array of all the image files//
            string[] imgPaths = Directory.GetFiles(@"c:\image_directory\");
 
            //loop through each image//
            for (int i = 0; i < imgPaths.Length; i++)
            {
                string file_path = imgPaths[i];
                //get the file name out of full path//
                string filename = Regex.Match(imgPaths[i], @".*\\([^\\]+$)").Groups[1].Value;
                //output the filename about to be converted
                Console.WriteLine("converting : "+filename);
                //make arguements string
                string write2string = " -i " + file_path + " -s 80x80 "+@"c:\\image_directory\\t\\t_" + filename;
                //create a process
                Process myProcess = new Process();
                myProcess.StartInfo.UseShellExecute = false;
                myProcess.StartInfo.RedirectStandardOutput = true;
                //point ffmpeg location
                myProcess.StartInfo.FileName = @"c:\\ffmpeg\\bin\\ffmpeg";
                //set arguements
                myProcess.StartInfo.Arguments = write2string;
                myProcess.Start();
                myProcess.WaitForExit();
            }
        }
    }
}