How to get a picture size, change it and save the document back in C# and VB.Net

How to get a picture size, change it and save the document back
in C# and VB.Net


Complete code

using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using SautinSoft.Document;
using SautinSoft.Document.Drawing;

namespace Sample
{
    class Sample
    {
        
        static void Main(string[] args)
        {
            GetAndChangePictureSize();
        }

        /// <summary>
        /// Get a Picture size, Change it and Save the document back.
        /// </summary>
        /// <remarks>
        /// Details: https://sautinsoft.com/products/document/help/net/developer-guide/get-and-change-picture-size-in-docx-csharp-vb-net.php
        /// </remarks>
        public static void GetAndChangePictureSize()
        {
            // Path to a document where to extract pictures.
            string inpFile = @"..\..\example.docx";
            string outFile = "Result.docx";
          
            // Load the document.
            DocumentCore dc = DocumentCore.Load(inpFile);

            // Get the physical size of the first picture from the document.            
            Picture pict = dc.GetChildElements(true, ElementType.Picture).FirstOrDefault() as Picture;
            Size size = pict.Layout.Size;

            Console.WriteLine("The 1st picture has this size:\r\n");
            Console.WriteLine("W: {0}, H: {1} (In points)", size.Width, size.Height);
            Console.WriteLine("W: {0}, H: {1} (In pixels)", LengthUnitConverter.Convert(size.Width, LengthUnit.Point, LengthUnit.Pixel),
                                                            LengthUnitConverter.Convert(size.Height, LengthUnit.Point, LengthUnit.Pixel));
            Console.WriteLine("W: {0:F2}, H: {1:F2} (In mm)", LengthUnitConverter.Convert(size.Width, LengthUnit.Point, LengthUnit.Millimeter),
                                                            LengthUnitConverter.Convert(size.Height, LengthUnit.Point, LengthUnit.Millimeter));
            Console.WriteLine("W: {0:F2}, H: {1:F2} (In cm)", LengthUnitConverter.Convert(size.Width, LengthUnit.Point, LengthUnit.Centimeter),
                                                            LengthUnitConverter.Convert(size.Height, LengthUnit.Point, LengthUnit.Centimeter));
            Console.WriteLine("W: {0:F2}, H: {1:F2} (In inches)", LengthUnitConverter.Convert(size.Width, LengthUnit.Point, LengthUnit.Inch),
                                                            LengthUnitConverter.Convert(size.Height, LengthUnit.Point, LengthUnit.Inch));

            Console.WriteLine("\r\nNow let\'s increase the picture size in x1.5 times. Press any key ...");
            Console.ReadKey();

            // Note, we don't change the physical picture size  we only scale/stretch the it.
            pict.Layout.Size = new Size(size.Width * 1.5, size.Height * 1.5);

            // Save the document as a new docx file.
            dc.Save(outFile);

            // Open the result for demonstration purposes.
            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile) { UseShellExecute = true });
        }
    }
}

Download.

        
            Imports System
Imports System.IO
Imports System.Collections.Generic
Imports System.Linq
Imports SautinSoft.Document
Imports SautinSoft.Document.Drawing

Module Sample
    Sub Main()
        GetAndChangePictureSize()
    End Sub

    ''' <summary>
    ''' Get a Picture size, Change it and Save the document back.
    ''' </summary>
    ''' <remarks>
    ''' Details: https://sautinsoft.com/products/document/help/net/developer-guide/get-and-change-picture-size-in-docx-csharp-vb-net.php
    ''' </remarks>
    Public Sub GetAndChangePictureSize()
        ' Path to a document where to extract pictures.
        Dim inpFile As String = "..\example.docx"
        Dim outFile As String = "Result.docx"

        ' Load the document.
        Dim dc As DocumentCore = DocumentCore.Load(inpFile)

        ' Get the physical size of the first picture from the document.            
        Dim pict As Picture = TryCast(dc.GetChildElements(True, ElementType.Picture).FirstOrDefault(), Picture)
        Dim size As Size = pict.Layout.Size

        Console.WriteLine("The 1st picture has this size:" & vbCrLf)
        Console.WriteLine("W: {0}, H: {1} (In points)", size.Width, size.Height)
        Console.WriteLine("W: {0}, H: {1} (In pixels)", LengthUnitConverter.Convert(size.Width, LengthUnit.Point, LengthUnit.Pixel), LengthUnitConverter.Convert(size.Height, LengthUnit.Point, LengthUnit.Pixel))
        Console.WriteLine("W: {0:F2}, H: {1:F2} (In mm)", LengthUnitConverter.Convert(size.Width, LengthUnit.Point, LengthUnit.Millimeter), LengthUnitConverter.Convert(size.Height, LengthUnit.Point, LengthUnit.Millimeter))
        Console.WriteLine("W: {0:F2}, H: {1:F2} (In cm)", LengthUnitConverter.Convert(size.Width, LengthUnit.Point, LengthUnit.Centimeter), LengthUnitConverter.Convert(size.Height, LengthUnit.Point, LengthUnit.Centimeter))
        Console.WriteLine("W: {0:F2}, H: {1:F2} (In inches)", LengthUnitConverter.Convert(size.Width, LengthUnit.Point, LengthUnit.Inch), LengthUnitConverter.Convert(size.Height, LengthUnit.Point, LengthUnit.Inch))

        Console.WriteLine(vbCrLf & "Now let's increase the picture size in x1.5 times. Press any key ...")
        Console.ReadKey()

        ' Note, we don't change the physical picture size  we only scale/stretch the it.
        pict.Layout.Size = New Size(size.Width * 1.5, size.Height * 1.5)

        ' Save the document as a new docx file.
        dc.Save(outFile)

        ' Open the result for demonstration purposes.
        System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile) With {.UseShellExecute = True})
    End Sub
End Module

          

Download.


If you need a new code example or have a question: email us at support@sautinsoft.com or ask at Online Chat (right-bottom corner of this page) or use the Form below:



Questions and suggestions from you are always welcome!

We are developing .Net components since 2002. We know PDF, DOCX, RTF, HTML, XLSX and Images formats. If you need any assistance with creating, modifying or converting documents in various formats, we can help you. We will write any code example for you absolutely free.