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PdfFocusToHtml(Int32, Int32) Method

Saves a specific PDF page or diapason of pages to HTML document as string object.

Namespace: SautinSoft
Assembly: SautinSoft.PdfFocus (in SautinSoft.PdfFocus.dll) Version: 2024.12.2
Syntax
public string ToHtml(
	int fromPage,
	int toPage
)

Parameters

fromPage  Int32
The starting page to export into HTML.
toPage  Int32
The ending page to export into HTML.

Return Value

String
HTML document as String object - in case of converting successfully.
null - in case of converting failed.
Example
How to convert PDF to separate HTML pages in C#
using System;
using System.IO;

namespace Sample
{
    class Sample
    {
        static void Main(string[] args)
        {
            // Before starting, we recommend to get a free 100-day key:
            // https://sautinsoft.com/start-for-free/

            // Apply the key here:
            // SautinSoft.PdfFocus.SetLicense("...");

            // Convert PDF to separate HTMLs.
            // Each PDF page will be converted to a single HTML document.
            string pdfFile = Path.GetFullPath(@"..\..\..\simple text.pdf");            
            DirectoryInfo htmlDir = new DirectoryInfo("htmls");
            if (!htmlDir.Exists)
                htmlDir.Create();

            SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();

            f.HtmlOptions.IncludeImageInHtml = false;

            // Path (must exist) to a directory to store images after converting.             
            f.HtmlOptions.ImageFolder = htmlDir.FullName;

            f.OpenPdf(pdfFile);

            if (f.PageCount > 0)
            {
                // Convert each PDF page to separate HTML document.
                // simple text.html, simple text.html ... simple text.html.
                for (int page = 1; page <= f.PageCount; page++)
                {
                    f.HtmlOptions.Title = $"Page {page}";
                    f.HtmlOptions.ImageSubFolder = String.Format("page{0}_images", page);
                    string htmlString = f.ToHtml(page, page);

                    // Save htmlString to file
                    string htmlFile = Path.Combine(htmlDir.FullName, $"Page{page}.html");
                    File.WriteAllText(htmlFile, htmlString);

                    // Let's open only 1st and last pages.
                    if (page == 1 || page == f.PageCount)
                    {
                        // Open the result for demonstration purposes.
                        System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(htmlFile) { UseShellExecute = true });
                    }
                }
            }
        }
    }
}
How to convert PDF to separate HTML pages in VB.Net
Imports System
Imports System.IO

Namespace Sample
    Friend Class Sample
        Shared Sub Main(ByVal args() As String)
            ' Before starting, we recommend to get a free 100-day key:
            ' https://sautinsoft.com/start-for-free/

            ' Apply the key here
            ' SautinSoft.PdfFocus.SetLicense("...");

            ' Convert PDF to separate HTMLs.
            ' Each PDF page will be converted to a single HTML document.
            Dim pdfFile As String = Path.GetFullPath("..\..\..\simple text.pdf")
            Dim htmlDir As New DirectoryInfo("htmls")
            If Not htmlDir.Exists Then
                htmlDir.Create()
            End If
            Dim f As New SautinSoft.PdfFocus()

            f.HtmlOptions.IncludeImageInHtml = False

            ' Path (must exist) to a directory to store images after converting.             
            f.HtmlOptions.ImageFolder = htmlDir.FullName

            f.OpenPdf(pdfFile)

            If f.PageCount > 0 Then
                ' Convert each PDF page to separate HTML document.
                ' simple text.html, simple text.html ... simple text.html.
                For page As Integer = 1 To f.PageCount
                    f.HtmlOptions.Title = $"Page {page}"
                    f.HtmlOptions.ImageSubFolder = String.Format("page{0}_images", page)
                    Dim htmlString As String = f.ToHtml(page, page)

                    ' Save htmlString to file
                    Dim htmlFile As String = Path.Combine(htmlDir.FullName, $"Page{page}.html")
                    File.WriteAllText(htmlFile, htmlString)

                    ' Let's open only 1st and last pages.
                    If page = 1 OrElse page = f.PageCount Then
                        ' Open the result for demonstration purposes.
                        System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(htmlFile) With {.UseShellExecute = True})
                    End If
                Next page
            End If
        End Sub
    End Class
End Namespace
See Also