PM> Install-Package Spire.PDF

using Spire.Additions.Chrome;

namespace ConvertHtmlToPdfUsingChrome
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Specify the input URL and output PDF file path
            string inputUrl = @"https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/C-/VB.NET-Convert-Image-to-PDF.html";            
            string outputFile = @"HtmlToPDF.pdf";

            //Specify the path to the Chrome plugin
            string chromeLocation = @"C:\Program Files\Google\Chrome\Application\chrome.exe";

            //Create an instance of the ChromeHtmlConverter class
            ChromeHtmlConverter converter = new ChromeHtmlConverter(chromeLocation);

            // Create an instance of the ConvertOptions class
            ConvertOptions options = new ConvertOptions();
            //Set conversion timeout
            options.Timeout = 10 * 3000;
            //Set paper size and page margins of the converted PDF
            options.PageSettings = new PageSettings()
            {
                PaperWidth = 8.27,
                PaperHeight = 11.69,
                MarginTop = 0,
                MarginLeft = 0,
                MarginRight = 0,
                MarginBottom = 0

            };

            //Convert the URL to PDF
            converter.ConvertToPdf(inputUrl, outputFile, options);
        }
    }
}

using Spire.Additions.Chrome;

namespace ConvertHtmlToPdfUsingChrome
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Specify the input URL and output PDF file path
            string inputUrl = @"https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/C-/VB.NET-Convert-Image-to-PDF.html";
            string outputFile = @"HtmlToPDF.pdf";

            // Specify the log file path
            string logFilePath = @"Logs.txt";

            //Specify the path to the Chrome plugin
            string chromeLocation = @"C:\Program Files\Google\Chrome\Application\chrome.exe";

            //Create an instance of the ChromeHtmlConverter class
            ChromeHtmlConverter converter = new ChromeHtmlConverter(chromeLocation);
            //Enable logging
            converter.Logger = new Logger(logFilePath);

            //Create an instance of the ConvertOptions class
            ConvertOptions options = new ConvertOptions();
            //Set conversion timeout
            options.Timeout = 10 * 3000;
            //Set paper size and page margins of the converted PDF
            options.PageSettings = new PageSettings()
            {
                PaperWidth = 8.27,
                PaperHeight = 11.69,
                MarginTop = 0,
                MarginLeft = 0,
                MarginRight = 0,
                MarginBottom = 0

            };

            //Convert the URL to PDF
            converter.ConvertToPdf(inputUrl, outputFile, options);
        }
    }
}

PM> Install-Package Spire.PDF

using Spire.Pdf;

namespace PDFToMarkdown
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create an instance of PdfDocument class
            PdfDocument pdf = new PdfDocument();

            // Load a PDF document
            pdf.LoadFromFile("Sample.pdf");

            // Convert the document to Markdown file
            pdf.SaveToFile("output/PDFToMarkdown.md", FileFormat.Markdown);

            // Release resources
            pdf.Close();
        }
    }
}

using Spire.Pdf;
using System.IO;
using System.Net.Http;

namespace PDFToMarkdownByStream
{
    class Program
    {
        static async Task Main(string[] args)
        {
            // Create an instance of PdfDocument class
            PdfDocument pdf = new PdfDocument();

            // Download a PDF document from a url as bytes
            using (HttpClient client = new HttpClient())
            {
                byte[] pdfBytes = await client.GetByteArrayAsync("http://example.com/Sample.pdf");

                // Create a MemoryStream using the bytes
                using (MemoryStream inputStream = new MemoryStream(pdfBytes))
                {
                    // Load the PDF document from the stream
                    pdf.LoadFromStream(inputStream);

                    // Create another MemoryStream object to store the Markdown file
                    using (MemoryStream outputStream = new MemoryStream())
                    {
                        // Convert the PDF document to a Markdown file stream
                        pdf.SaveToStream(outputStream, FileFormat.Markdown);
                        outputStream.Position = 0; // Reset the position of the stream for subsequent reads

                        // Upload the result stream or write it to a file
                        await client.PostAsync("http://example.com/upload", new StreamContent(outputStream));
                        File.WriteAllBytes("output.md", outputStream.ToArray());
                    }
                }
            }

            // Release resources
            pdf.Close();
        }
    }
}

PM> Install-Package Spire.PDF

using Spire.Pdf;
using Spire.Pdf.Graphics;
using System.Drawing;

namespace ConvertMultipleImagesIntoPdf
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a PdfDocument object
            PdfDocument doc = new PdfDocument();

            //Set the page margins to 0
            doc.PageSettings.SetMargins(0);

            //Get the folder where the images are stored
            DirectoryInfo folder = new DirectoryInfo(@"C:\Users\Administrator\Desktop\Images");

            //Iterate through the files in the folder
            foreach (FileInfo file in folder.GetFiles())
            {
                //Load a particular image 
                Image image = Image.FromFile(file.FullName);

                //Get the image width and height
                float width = image.PhysicalDimension.Width;
                float height = image.PhysicalDimension.Height;

                //Add a page that has the same size as the image
                PdfPageBase page = doc.Pages.Add(new SizeF(width, height));

                //Create a PdfImage object based on the image
                PdfImage pdfImage = PdfImage.FromImage(image);

                //Draw image at (0, 0) of the page
                page.Canvas.DrawImage(pdfImage, 0, 0, pdfImage.Width, pdfImage.Height);
            }
      
            //Save to file
            doc.SaveToFile("CombinaImagesToPdf.pdf");
            doc.Dispose();
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Graphics
Imports System.Drawing
 
Namespace ConvertMultipleImagesIntoPdf
    Class Program
        Shared  Sub Main(ByVal args() As String)
            'Create a PdfDocument object
            Dim doc As PdfDocument =  New PdfDocument() 
 
            'Set the page margins to 0
            doc.PageSettings.SetMargins(0)
 
            'Get the folder where the images are stored
            Dim folder As DirectoryInfo =  New DirectoryInfo("C:\Users\Administrator\Desktop\Images") 
 
            'Iterate through the files in the folder
            Dim file As FileInfo
            For Each file In folder.GetFiles()
                'Load a particular image 
                Dim image As Image =  Image.FromFile(file.FullName) 
 
                'Get the image width and height
                Dim width As single =  image.PhysicalDimension.Width 
                Dim height As single =  image.PhysicalDimension.Height 
 
                'Add a page that has the same size as the image
                Dim page As PdfPageBase =  doc.Pages.Add(New SizeF(width,height)) 
 
                'Create a PdfImage object based on the image
                Dim pdfImage As PdfImage =  PdfImage.FromImage(image) 
 
                'Draw image at (0, 0) of the page
                page.Canvas.DrawImage(pdfImage, 0, 0, pdfImage.Width, pdfImage.Height)
            Next
 
            'Save to file
            doc.SaveToFile("CombinaImagesToPdf.pdf")
            doc.Dispose()
        End Sub
    End Class
End Namespace

PM> Install-Package Spire.PDF

using Spire.Pdf;

namespace PDFtoPowerPoint
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a PdfDocument instance
            PdfDocument pdf = new PdfDocument();

            //Load a sample PDF document
            pdf.LoadFromFile(@"C:\Users\Administrator\Desktop\Sample.pdf");

            //Convert the PDF to PPTX document
            pdf.SaveToFile("ConvertPDFtoPowerPoint.pptx", FileFormat.PPTX);
        }
    }
}

Imports Spire.Pdf

Namespace PDFtoPowerPoint
    Class Program
        Private Shared Sub Main(ByVal args() As String)
            'Create a PdfDocument instance
            Dim pdf As PdfDocument = New PdfDocument

            'Load a sample PDF document
            pdf.LoadFromFile("C:\Users\Administrator\Desktop\Sample.pdf")

            'Convert the PDF to PPTX document
            pdf.SaveToFile("ConvertPDFtoPowerPoint.pptx", FileFormat.PPTX)
        End Sub
    End Class
End Namespace

PM> Install-Package Spire.PDF

using Spire.Pdf;
using Spire.Pdf.Conversion;

namespace ConvertPdfToExcel
{
    class Program
    {
        static void Main(string[] args)
        {
            //Initialize an instance of PdfDocument class
            PdfDocument pdf = new PdfDocument();
            //Load the PDF document
            pdf.LoadFromFile("Sample.pdf");

            //Save the PDF document to XLSX
            pdf.SaveToFile("PdfToExcel.xlsx", FileFormat.XLSX);
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Conversion

Namespace ConvertPdfToExcel
    Friend Class Program
        Private Shared Sub Main(ByVal args As String())
            'Initialize an instance of PdfDocument class
            Dim pdf As PdfDocument = New PdfDocument()
            'Load the PDF document
            pdf.LoadFromFile("Sample.pdf")

            'Save the PDF document to XLSX
            pdf.SaveToFile("PdfToExcel.xlsx", FileFormat.XLSX)
        End Sub
    End Class
End Namespace

using Spire.Pdf;
using Spire.Pdf.Conversion;

namespace ConvertPdfToExcel
{
    class Program
    {
        static void Main(string[] args)
        {
            //Initialize an instance of PdfDocument class
            PdfDocument pdf = new PdfDocument();
            //Load the PDF document
            pdf.LoadFromFile("Sample1.pdf");

            //Initialize an instance of XlsxLineLayoutOptions class, in the class constructor, setting the first parameter - convertToMultipleSheet as false.
            //The four parameters represent: convertToMultipleSheet, showRotatedText, splitCell, wrapText
            XlsxLineLayoutOptions options = new XlsxLineLayoutOptions(false, true, true, true);
            //Set PDF to XLSX convert options
            pdf.ConvertOptions.SetPdfToXlsxOptions(options);

            //Save the PDF document to XLSX
            pdf.SaveToFile("PdfToOneExcelSheet.xlsx", FileFormat.XLSX);
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Conversion

Namespace ConvertPdfToExcel
    Friend Class Program
        Private Shared Sub Main(ByVal args As String())
            'Initialize an instance of PdfDocument class
            Dim pdf As PdfDocument = New PdfDocument()
            'Load the PDF document
            pdf.LoadFromFile("Sample1.pdf")

            'Initialize an instance of XlsxLineLayoutOptions class, in the class constructor, setting the first parameter - convertToMultipleSheet as false.
            'The four parameters represent: convertToMultipleSheet, showRotatedText, splitCell, wrapText
            Dim options As XlsxLineLayoutOptions = New XlsxLineLayoutOptions(False, True, True, True)
            'Set PDF to XLSX convert options
            pdf.ConvertOptions.SetPdfToXlsxOptions(options)

            'Save the PDF document to XLSX
            pdf.SaveToFile("PdfToOneExcelSheet.xlsx", FileFormat.XLSX)
        End Sub
    End Class
End Namespace

PM> Install-Package Spire.PDF

using Spire.Pdf;

namespace SVGtoPDF
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a PdfDocument object
            PdfDocument doc = new PdfDocument();

            //Load a sample SVG file
            doc.LoadFromSvg("Sample.svg");

            //Save result document
            doc.SaveToFile("Result.pdf", FileFormat.PDF);
            doc.Dispose();
        }
    }
}

Imports Spire.Pdf

Namespace SVGtoPDF
    Friend Class Program
        Private Shared Sub Main(ByVal args As String())
            'Create a PdfDocument object
            Dim doc As PdfDocument = New PdfDocument()

            'Load a sample SVG file
            doc.LoadFromSvg("Sample.svg")

            'Save result document
            doc.SaveToFile("Result.pdf", FileFormat.PDF)
            doc.Dispose();            

        End Sub
    End Class
End Namespace

using Spire.Pdf;
using Spire.Pdf.Graphics;
using System.Drawing;

namespace AddSVGImagetoPDF
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a PdfDocument object
            PdfDocument doc1 = new PdfDocument();

            //Load an SVG file
            doc1.LoadFromSvg("C:\\Users\\Administrator\\Desktop\\sample.svg");

            //Create a template based on the content of the SVG file
            PdfTemplate template = doc1.Pages[0].CreateTemplate();

            //Get the width and height of the template 
            float width = template.Width;
            float height = template.Height;

            //Create another PdfDocument object
            PdfDocument doc2 = new PdfDocument();

            //Load a PDF file
            doc2.LoadFromFile("C:\\Users\\Administrator\\Desktop\\sample.pdf");

            //Draw the template with a custom size at a specified location 
            doc2.Pages[0].Canvas.DrawTemplate(template, new PointF(0, 0), new SizeF(width * 0.8f, height * 0.8f));

            //Save to PDF file
            doc2.SaveToFile("AddSvgToPdf.pdf", FileFormat.PDF);
            doc2.Dispose();
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Graphics
Imports System.Drawing

Namespace AddSVGImagetoPDF
    Friend Class Program
        Private Shared Sub Main(ByVal args As String())
            'Create a PdfDocument object
            Dim doc1 As PdfDocument = New PdfDocument()

            'Load an SVG file
            doc1.LoadFromSvg("C:\Users\Administrator\Desktop\sample.svg")

            'Create a template based on the content of the SVG file
            Dim template As PdfTemplate = doc1.Pages(0).CreateTemplate()

            'Get the width and height of the template 
            Dim width As Single = template.Width
            Dim height As Single = template.Height

            'Create another PdfDocument object
            Dim doc2 As PdfDocument = New PdfDocument()

            'Load a PDF file
            doc2.LoadFromFile("C:\Users\Administrator\Desktop\sample.pdf")

            'Draw the template with a custom size at a specified location 
            doc2.Pages(0).Canvas.DrawTemplate(template, New PointF(0, 0), New SizeF(width * 0.8F, height * 0.8F))

            'Save to PDF file
            doc2.SaveToFile("AddSvgToPdf.pdf", FileFormat.PDF)
            doc2.Dispose()
        End Sub
    End Class
End Namespace

PM> Install-Package Spire.PDF 

using Spire.Pdf;

namespace PDFtoPS
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a PdfDocument instance
            PdfDocument document = new PdfDocument();

            //Load a sample PDF file
            document.LoadFromFile("Test.pdf");

            //Save the PDF file as a PS file
            document.SaveToFile("toPostScript.ps", FileFormat.POSTSCRIPT);
        }
    }
}

Imports Spire.PDF

Namespace PDFtoPS
    Class Program
        Private Shared Sub Main(ByVal args() As String)

            'Create a PdfDocument instance
            Dim document As PdfDocument = New PdfDocument

            'Load a sample PDF file
            document.LoadFromFile("Test.pdf")

            'Save the PDF file as a PS file
            document.SaveToFile("toPostScript.ps", FileFormat.POSTSCRIPT)
        End Sub
    End Class
End Namespace