Convert HTML to PDF file with page size and margins settings in C# and .NET


Complete code

using System;
using System.IO;
using SautinSoft.PdfVision;

namespace Sample
{
    class Program
    {
        static void Main(string[] args)
        {
            SetupPageProperties();
        }
        public static void SetupPageProperties()
        {
            string inpFile = Path.GetFullPath(@"..\..\..\example.html");
            string outFile = new FileInfo("Result.pdf").FullName;
			// Before starting, we recommend to get a free 100-day key:
            // https://sautinsoft.com/start-for-free/
            
            // Apply the key here:
			// SautinSoft.PdfVision.SetLicense("...");
            

            PdfVision v = new PdfVision();
            
            // Page size: A3 (297 x 420 mm)
            // Orientation: Portrait
            // Margins: Left: 30mm, Top: 15mm, Right: 25mm, Bottom: 15mm.

            HtmlToPdfOptions options = new HtmlToPdfOptions()
            {
                PageSetup = new PageSetup()
                {
                    PaperType = PaperType.A3,
                    Orientation = Orientation.Portrait,
                    PageMargins = new PageMargins()
                    {
                        Left = LengthUnitConverter.ToPoint(30, LengthUnit.Millimeter),
                        Top = LengthUnitConverter.ToPoint(15, LengthUnit.Millimeter),
                        Right = LengthUnitConverter.ToPoint(25, LengthUnit.Millimeter),
                        Bottom = LengthUnitConverter.ToPoint(15, LengthUnit.Millimeter)
                    }
                },
                PrintBackground = true,
                Scale = 1M,
				//Set a custom directory where will be placed portable Chromium browser. 
				//Default value depends of platform (win-x64, win-86, linux-x64 or osx-x64). 
				ChromiumBaseDirectory = Path.GetFullPath(@"..\..\..\..\..\..\Chromium\")
            };

            try
            {
                v.ConvertHtmlToPdf(inpFile, outFile, options);
                // Open the result for demonstration purposes.
                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile) { UseShellExecute = true });
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error: {ex.Message}");
                Console.ReadLine();
            }
        }
    }
}

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Imports System
Imports System.IO
Imports SautinSoft.PdfVision

Namespace Sample
	Friend Class Program
		Shared Sub Main(ByVal args() As String)
			SetupPageProperties()
		End Sub
		Public Shared Sub SetupPageProperties()
			Dim inpFile As String = Path.GetFullPath("..\..\..\example.html")
			Dim outFile As String = (New FileInfo("Result.pdf")).FullName
			' Before starting, we recommend to get a free 100-day key:
            ' https://sautinsoft.com/start-for-free/
            
            ' Apply the key here:
			' SautinSoft.PdfVision.SetLicense("...");

			Dim v As New PdfVision()
			

			' Page size: A3 (297 x 420 mm)
			' Orientation: Portrait
			' Margins: Left: 30mm, Top: 15mm, Right: 25mm, Bottom: 15mm.

			Dim options As New HtmlToPdfOptions() With {
				.PageSetup = New PageSetup() With {
					.PaperType = PaperType.A3,
					.Orientation = Orientation.Portrait,
					.PageMargins = New PageMargins() With {
						.Left = LengthUnitConverter.ToPoint(30, LengthUnit.Millimeter),
						.Top = LengthUnitConverter.ToPoint(15, LengthUnit.Millimeter),
						.Right = LengthUnitConverter.ToPoint(25, LengthUnit.Millimeter),
						.Bottom = LengthUnitConverter.ToPoint(15, LengthUnit.Millimeter)
					}
				},
				.PrintBackground = True,
				.Scale = 1D,
				.ChromiumBaseDirectory = Path.GetFullPath("..\..\..\..\..\..\Chromium\")
			}

			Try
				v.ConvertHtmlToPdf(inpFile, outFile, options)
				' Open the result for demonstration purposes.
				System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile) With {.UseShellExecute = True})
			Catch ex As Exception
				Console.WriteLine($"Error: {ex.Message}")
				Console.ReadLine()
			End Try
		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.