PDF Mosaic: How to edit an existing PDF document - Two Pilots

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This sample shows how to open existing PDF document and edit & re-save it using PDF Mosaic library.

C# :

using PDFMosaic;
using System;
 
namespace EditAndSave
{
  class EditAndReSave
  {
    static void Main(string[] args)
    {
      PDFDocument document = new PDFDocument("document.pdf"); // Open existing PDF document
      PDFCanvas canvas = document.Pages[0].Canvas;
 
      PDFFont font = new PDFFont("Arial", 16);
      PDFBrush brush = new PDFSolidBrush();
 
      canvas.DrawString("The document was changed!!", font, brush, 100, 300);
 
      document.Save("EditAndReSave.pdf", true);
    }
  }
}

Visial Basic.NET :

Imports PDFMosaic
Imports System
 
Module EditAndSave
  Sub Main()
    Dim document As New PDFDocument("document.pdf") ' Open existing PDF document
 
  Dim canvas As PDFCanvas = document.Pages(0).Canvas
 
    Dim font As New PDFFont("Arial", 16)
    Dim brush As New PDFSolidBrush()
 
    canvas.DrawString("The test string", font, brush, 100, 100)
 
    document.Save("EditAndSave.pdf", True)
  End Sub
End Module

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