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PdfConversionMode Enumeration

An enumeration of the PDF document conversion modes.

Namespace: SautinSoft.Document
Assembly: SautinSoft.Document (in SautinSoft.Document.dll) Version: 2024.3.11
Syntax
public enum PdfConversionMode
Members
Member nameValueDescription
Flowing0 The most useful and common type of document for editing. The resulting document looks as if it was typed by human.
Continuous1 A golden mean between Flowing and Exact modes.
Exact2 The most precise and fastest mode. The resulting document looks exact as PDF pixel by pixel.
Example

See Developer Guide: Rasterizing - save PDF document as PNG and JPEG images

Rasterizing - save PDF document as PNG and JPEG images in C#
using System;
using System.IO;
using SautinSoft.Document;
using SkiaSharp;

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

            RasterizePdfToPicture();         
        }

        /// <summary>
        /// Rasterizing - save PDF document as PNG and JPEG images.
        /// </summary>
        /// <remarks>
        /// Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/rasterize-save-pdf-document-as-png-jpeg-images-net-csharp-vb.php
        /// </remarks>
        static void RasterizePdfToPicture()
        {
            // In this example we'll how rasterize/save 1st and 2nd pages of PDF document
            // as PNG and JPEG images.
            string inputFile = @"..\..\..\example.pdf";
            string jpegFile = "Result.jpg";
            string pngFile = "Result.png";

            DocumentCore dc = DocumentCore.Load(inputFile, new PdfLoadOptions()
            {
                DetectTables = false,
                ConversionMode = PdfConversionMode.Exact
            });

            DocumentPaginator documentPaginator = dc.GetPaginator(new PaginatorOptions() { UpdateFields = true });

            int dpi = 300;

            int pagesToRasterize = 2;
            int currentPage = 1;

            foreach (DocumentPage page in documentPaginator.Pages)
            {
                // Save the page into Bitmap image with specified dpi and background.
                var DPI = new ImageSaveOptions();
                DPI.DpiX = 300;
                DPI.DpiY = 300;
                // Save the 1st document page to the file in PNG format.
                SkiaSharp.SKBitmap picture = page.Rasterize(DPI, SautinSoft.Document.Color.White);

                // Save the Bitmap to a PNG file.
                if (currentPage == 1)
                    picture.Encode(new FileStream(pngFile, FileMode.Create), SkiaSharp.SKEncodedImageFormat.Png, 100);
                else if (currentPage == 2)
                    // Save the Bitmap to a JPEG file.
                    picture.Encode(new FileStream(jpegFile, FileMode.Create), SkiaSharp.SKEncodedImageFormat.Jpeg, 100);

                currentPage++;

                if (currentPage > pagesToRasterize)
                    break;
            }

            // Open the results for demonstration purposes.
            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(pngFile) { UseShellExecute = true });
            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(jpegFile) { UseShellExecute = true });
        }
    }
}
Rasterizing - save PDF document as PNG and JPEG images in VB.Net
Imports System
Imports System.IO
Imports SautinSoft.Document
Imports SkiaSharp

Namespace Example
    Friend Class Program
        Shared Sub Main(ByVal args() As String)
            RasterizePdfToPicture()
        End Sub
        ''' Get your free 30-day key here:   
        ''' https://sautinsoft.com/start-for-free/
        ''' <summary>
        ''' Rasterizing - save PDF document as PNG and JPEG images.
        ''' </summary>
        ''' <remarks>
        ''' Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/rasterize-save-pdf-document-as-png-jpeg-images-net-csharp-vb.php
        ''' </remarks>
        Private Shared Sub RasterizePdfToPicture()
            ' In this example we'll how rasterize/save 1st and 2nd pages of PDF document
            ' as PNG and JPEG images.
            Dim inputFile As String = "..\..\..\example.pdf"
            Dim jpegFile As String = "Result.jpg"
            Dim pngFile As String = "Result.png"

            Dim dc As DocumentCore = DocumentCore.Load(inputFile, New PdfLoadOptions() With {
                .DetectTables = False,
                .ConversionMode = PdfConversionMode.Exact
            })

            Dim documentPaginator As DocumentPaginator = dc.GetPaginator(New PaginatorOptions() With {.UpdateFields = True})

            Dim pagesToRasterize As Integer = 2
            Dim currentPage As Integer = 1

            For Each page As DocumentPage In documentPaginator.Pages
                ' Save the page into Bitmap image with specified dpi and background.
                Dim dpi As ImageSaveOptions = New ImageSaveOptions
                dpi.DpiX = 72
                dpi.DpiY = 72

                Dim picture As SKBitmap = page.Rasterize(dpi, SautinSoft.Document.Color.White)

                ' Save the Bitmap to a PNG file.
                If currentPage = 1 Then
                    picture.Encode(New FileStream(pngFile, FileMode.Create), SkiaSharp.SKEncodedImageFormat.Png, 100)
                ElseIf currentPage = 2 Then
                    ' Save the Bitmap to a JPEG file.
                    picture.Encode(New FileStream(jpegFile, FileMode.Create), SkiaSharp.SKEncodedImageFormat.Jpeg, 100)
                End If

                currentPage += 1

                If currentPage > pagesToRasterize Then
                    Exit For
                End If
            Next page

            ' Open the results for demonstration purposes.
            System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(pngFile) With {.UseShellExecute = True})
            System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(jpegFile) With {.UseShellExecute = True})
        End Sub
    End Class
End Namespace
See Also