Convert HTML to PNG in C# and VB.Net.


Complete code 

using System;
using System.IO;

namespace Sample
{
    class Test
    {
        static void Main(string[] args)
        {
            // Convert HTML to PNG.
            SautinSoft.PdfVision v = new SautinSoft.PdfVision();

            // Set "Edge mode" to support all modern CSS.
            SautinSoft.PdfVision.TrySetBrowserModeEdgeInRegistry();

            string inpFile = @"https://nationalzoo.si.edu";
            FileInfo outFile = new FileInfo("Result.png");

            int ret = v.ConvertHtmlFileToImageFile(inpFile, outFile.FullName, SautinSoft.PdfVision.eImageFormat.Png);

            // 0 - converting successfully
            // 1 - can't open input file, check the input path
            // 2 - can't create output file, check the output path
            // 3 - converting failed
            if (ret == 0)
            {
                // Open the produced PNG image in a default Viewer.
                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile.FullName) { UseShellExecute = true });
            }
        }
    }
}

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            Imports System
Imports System.IO

Namespace Sample
    Friend Class Test
        Shared Sub Main(ByVal args() As String)
            ' Convert HTML to PNG.
            Dim v As New SautinSoft.PdfVision()

            ' Set "Edge mode" to support all modern CSS.
            SautinSoft.PdfVision.TrySetBrowserModeEdgeInRegistry()

            Dim inpFile As String = "https://nationalzoo.si.edu"
            Dim outFile As New FileInfo("Result.png")

            Dim ret As Integer = v.ConvertHtmlFileToImageFile(inpFile, outFile.FullName, SautinSoft.PdfVision.eImageFormat.Png)

            ' 0 - converting successfully
            ' 1 - can't open input file, check the input path
            ' 2 - can't create output file, check the output path
            ' 3 - converting failed
            If ret = 0 Then
                ' Open the produced PNG image in a default Viewer.
                System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile.FullName) With {.UseShellExecute = True})
            End If
        End Sub
    End Class
End Namespace

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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.