PdfFocusCImageExtractionOptions Class

public class CImageExtractionOptions

Public Class CImageExtractionOptions

using System;
using System.IO;
using System.Collections.Generic;
using SautinSoft;

namespace Sample
{
    class Sample
    {
        static void Main(string[] args)
        {
                                  // Get your free 30-day key here:   
             // https://sautinsoft.com/start-for-free/

            // Extract all images with width and height more than 200px
            SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();

            string pdfFile = Path.GetFullPath(@"..\..\..\simple text.pdf");
            string imageDir = new DirectoryInfo(Directory.GetCurrentDirectory()).CreateSubdirectory("images").FullName;

            List<PdfFocus.PdfImage> pdfImages = null;

            f.OpenPdf(pdfFile);

            if (f.PageCount > 0)
            {
                // Specify to extract only images which have width and height
                // more than 200px
                f.ImageExtractionOptions.MinSize = new SkiaSharp.SKSize(200, 200);

                pdfImages = f.ExtractImages();                

                // Show all extracted images.
                if (pdfImages != null && pdfImages.Count > 0)
                {

                    for (int i = 0; i < pdfImages.Count; i++)
                    {
                        string imageFile = Path.Combine(imageDir, String.Format("img{0}.png", i + 1));
                        pdfImages[i].Picture.Encode(new FileStream(imageFile, FileMode.Create), SkiaSharp.SKEncodedImageFormat.Png, 100);            
                    }
                    System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(imageDir) { UseShellExecute = true });
                }
            }
        }
    }
}

Imports System
Imports System.IO
Imports System.Collections.Generic
Imports SautinSoft

Namespace Sample
    Friend Class Sample
        Shared Sub Main(ByVal args() As String)
              ' Get your free 30-day key here:   
             ' https://sautinsoft.com/start-for-free/

            ' Extract all images with width and height more than 200px
            Dim f As New SautinSoft.PdfFocus()

            Dim pdfFile As String = Path.GetFullPath("..\..\..\simple text.pdf")
            Dim imageDir As String = (New DirectoryInfo(Directory.GetCurrentDirectory())).CreateSubdirectory("images").FullName

            Dim pdfImages As List(Of PdfFocus.PdfImage) = Nothing

            f.OpenPdf(pdfFile)

            If f.PageCount > 0 Then
                ' Specify to extract only images which have width and height
                ' more than 200px
                f.ImageExtractionOptions.MinSize = New SkiaSharp.SKSize(200, 200)

                pdfImages = f.ExtractImages()

                ' Show all extracted images.
                If pdfImages IsNot Nothing AndAlso pdfImages.Count > 0 Then

                    For i As Integer = 0 To pdfImages.Count - 1
                        Dim imageFile As String = Path.Combine(imageDir, String.Format("img{0}.png", i + 1))
                        pdfImages(i).Picture.Encode(New FileStream(imageFile, FileMode.Create), SkiaSharp.SKEncodedImageFormat.Png, 100)
                    Next i
                    System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(imageDir) With {.UseShellExecute = True})
                End If
            End If
        End Sub
    End Class
End Namespace