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HtmlToPdfOptionsChromiumBaseDirectory Property

Gets and sets a custom directory where will be placed portable Chromium browser. Default value depends of platform (win-x64, win-86, linux-x64 or osx-x64)Current directory\runtimes\win-x64\native\.

Namespace: SautinSoft.PdfVision
Assembly: SautinSoft.PdfVision (in SautinSoft.PdfVision.dll) Version: 2024.12.6
Syntax
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public string ChromiumBaseDirectory { get; set; }

Property Value

String
Remarks
Before start the converting the component will always try find the portable Chromium browser in this directory.
In case of Chromium browser is missing in this directory, the component will try to download Chromium browser from Internet (https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html).
To unpack the portable Chromium browser without Internet connection: 1. Add reference into your App to one of these assemblies depending of deploying platform:
https://www.nuget.org/packages/SautinSoft.PdfVision.Chromium.Windows
https://www.nuget.org/packages/SautinSoft.PdfVision.Chromium.Linux
https://www.nuget.org/packages/SautinSoft.PdfVision.Chromium.MacOs
2. Launch this code:
ChromiumEngine.Unpack(ChromiumBaseDirectory);
Thus you can always be sure that you deploy SautinSoft.PdfVision with portable Chromium browser on client's machine without Internet connection.
Example
How to convert multiple HTML files to single PDF file using C#
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using System;
using System.IO;
using System.Collections.Generic;
using SautinSoft.PdfVision;

namespace Sample
{
    class Program
    {
        static void Main(string[] args)
        {
            ConvertMultipleHtmlToPdfFile();
        }
        public static void ConvertMultipleHtmlToPdfFile()
        {
            string[] inpFiles = new string[]
            {
                Path.GetFullPath(@"..\..\..\1.html"),
                Path.GetFullPath(@"..\..\..\2.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();

            HtmlToPdfOptions options = new HtmlToPdfOptions()
            {
                PageSetup = new PageSetup()
                {
                    PaperType = PaperType.Letter,
                    Orientation = Orientation.Portrait,
                    PageMargins = new PageMargins()
                    {
                        Left = LengthUnitConverter.ToPoint(5, LengthUnit.Millimeter),
                        Top = LengthUnitConverter.ToPoint(5, LengthUnit.Millimeter),
                        Right = LengthUnitConverter.ToPoint(5, LengthUnit.Millimeter),
                        Bottom = LengthUnitConverter.ToPoint(5, LengthUnit.Millimeter)
                    }
                },
                PrintBackground = true,
                   Scale = 1,
                //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
            {
                List<byte[]> pdfCollection = new List<byte[]>();
                foreach (string inpFile in inpFiles)
                {
                    Console.WriteLine($"Converting {Path.GetFileName(inpFile)} ...");
                    byte[] pdfData = v.ConvertHtmlToPdf(inpFile, options);
                    pdfCollection.Add(pdfData);
                }

                // Merge PDFs into single PDF document.
                byte[] singlePdfData = v.MergePdf(pdfCollection);
                File.WriteAllBytes(outFile, singlePdfData);

                // 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();
            }
        }
    }
}
How to convert multiple HTML files to single PDF file using VB.Net
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Imports System
Imports System.IO
Imports System.Collections.Generic
Imports SautinSoft.PdfVision

Namespace Sample
    Friend Class Program
        Shared Sub Main(ByVal args() As String)
            ConvertMultipleHtmlToPdfFile()
        End Sub
        Public Shared Sub ConvertMultipleHtmlToPdfFile()
            Dim inpFiles() As String = {Path.GetFullPath("..\..\..\1.html"), Path.GetFullPath("..\..\..\2.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()

            Dim options As New HtmlToPdfOptions() With {
                .PageSetup = New PageSetup() With {
                    .PaperType = PaperType.Letter,
                    .Orientation = Orientation.Portrait,
                    .PageMargins = New PageMargins() With {
                        .Left = LengthUnitConverter.ToPoint(5, LengthUnit.Millimeter),
                        .Top = LengthUnitConverter.ToPoint(5, LengthUnit.Millimeter),
                        .Right = LengthUnitConverter.ToPoint(5, LengthUnit.Millimeter),
                        .Bottom = LengthUnitConverter.ToPoint(5, LengthUnit.Millimeter)
                    }
                },
                .PrintBackground = True,
                .Scale = 1,
                .ChromiumBaseDirectory = Path.GetFullPath("..\..\..\..\..\..\Chromium\")
            }

            Try
                Dim pdfCollection As New List(Of Byte())()
                For Each inpFile As String In inpFiles
                    Console.WriteLine($"Converting {Path.GetFileName(inpFile)} ...")
                    Dim pdfData() As Byte = v.ConvertHtmlToPdf(inpFile, options)
                    pdfCollection.Add(pdfData)
                Next inpFile

                ' Merge PDFs into single PDF document.
                Dim singlePdfData() As Byte = v.MergePdf(pdfCollection)
                File.WriteAllBytes(outFile, singlePdfData)

                ' 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
See Also