Convert PDF to HTML in C# using PDF Focus .Net library
Key Features
PDF to Word, RTF
PDF to Word, DOCX
PDF to Images: JPEG, TIFF
PDF to Excel
PDF to Text
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PDF Focus .Net - simplifies PDF to HTML converting to several C# code lines!

Convert PDF to HTML in C# using PDF Focus .Net library


     Without belaboring the point, let's see how to add "PDF to HTML feature" into any .Net application. First of all, to give your .Net application ability to convert PDF to HTML, add a reference to the "SautinSoft.PdfFocus.dll" assembly. You may download it here, 104.0 Mb.

Let's take a look to a very straightforward example in C#:

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

PDF Focus .Net generates documents in HTML5 format. Also you may choose between the two conversion modes:

  • HTML-Fixed is better to use for rendering, because it completely repeats the PDF layout with the structure of pages.
    The markup of such documents is very complex and have a lot of tags styled by (x,y) coords.

  • HTML-Flowing is better for further processing by a human: editing and combining.
    The markup of such documents is much simple inside and has the flowing structure. It's very simple for understanding by a human.

The difference choose between HTML-Fixed and HTML-Flowing modes.

Another point of interest, PDF Focus .Net can generate HTML documents with images embedded using base-64 algorithm. Given this fact, you can convert PDF to HTML completely in memory without HDD.

		<div style="position:relative;margin: 0px 0px ....">Homer is
        the author of the Iliad and the Odyssey ...</div>
		<div style="....">
        <img  src="data:image/gif;base64,R0lGODlhUAAPAKIAAAsL...></div>

All HTML documents produced using SautinSoft.PdfFocus.dll are completely compatible with W3C standards W3C Markup validation service.

Nuget  Online Demo   Download, (Mar 27-th, 2020)

Have a Question?

You have a question, need a support or a code example: ask our support team at We will help you quickly and with pleasure.

What PDF Focus .Net gives me:

  1. Save time and cost of the product development. The writing of own PDF converter in C# requires a lot of days of hard work and takes approx 100 000 C# code lines. PDF Focus .Net will save a lot of my time and I'll need only to add the reference to "SautinSoft.PdfFocus.dll" and write 3-4 C# code lines.

  2. The one product provides me by set of API to convert PDF at various formats at once: Word, DOCX, RTF, Excel, HTML, Text, Multipage TIFF, Jpeg, PNG.

  3. Because of this is absolutely standalone PDF library, my clients don't need to have Adobe Acrobat, MS Word, Excel or other software.

  4. My software will have the one of the fastest API to convert PDFs inside, you may check this.

  5. I can select the any of product editions: Total, Office, HTML and Picasso. This saves my money. Let's us say, that I'm looking for only the API to convert PDF to HTML and don't need other features. Given this point, I can purchase the "HTML" edition of PDF Focus .Net. It's much cheaper than competitor's price.

  6. The one time price. I pay a one time and can use «PDF Focus .Net» for a whole life without any additional fees. My license will never expires.

  7. As bonus, I get unlimited technical support during a whole life for free and independently of the date of my purchasing.

Some examples to convert PDF to HTML in C# and VB.Net

Want to adjust a result of PDF to HTML conversion? See our tips ...

1. Convert PDF file to HTML file in C#:

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

            if (f.PageCount > 0)
                int result = f.ToHtml(@"d:\History.html");
                //Open HTML document
                if (result==0)
2. Convert PDF to HTML in memory using C#:
           byte[] pdf = File.ReadAllBytes(@"c:\Book.pdf");

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

            if (f.PageCount > 0)
                f.HtmlOptions.IncludeImageInHtml = true;
                f.HtmlOptions.Title = "Simple text";
                string html = f.ToHtml();
                //now the variable 'html' contains HTML document

4. Export PDF to HTML in ASP.Net-C#:

        SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();
        string html = String.Empty;

        if (f.PageCount > 0)
            //Let's whole PDF document to HTML
            f.HtmlOptions.IncludeImageInHtml = true;
            html = f.ToHtml();

        //show HTML
        if (html != "")
            Response.Buffer = true;
            Response.ContentType = "application/msword";
            Response.AddHeader("Content-Disposition:", "attachment; filename=Result.doc");
5. Convert PDF file to HTML file in VB.Net:
        Dim f As New SautinSoft.PdfFocus()
        f.OpenPdf("c:\Simple Text.pdf")

        If f.PageCount > 0 Then
            Dim result As Integer = f.ToHtml("c:\Result.html")

            'Show HTML document
            If result = 0 Then
            End If
        End If
If anyone needs a code sample in C#, VB.Net, ASP.Net etc "How to convert PDF to HTML", email us at or ask at Online Chat (right-bottom corner of this page). We'll help you certainly!

Requirements and Technical Information

     Requires only .NET Framework 4.0 or higher. Our product is compatible with all .NET languages and supports all Operating Systems where .NET Framework and .NET Core can be used. Note that PDF Focus .Net is entirely written in managed C#, which makes it absolutely standalone and an independent library.

.NET Framework 4.0 and higher and .NET Core 2.0 and higher

.NET Framework 4.0, 4.5, 4.6.1 and higher. The old version for old .NET 2.0 can be found here.

.NET Standard 2.0

.NET Core 2.0 and higher.

Multi-platform component, runs on:

Our component has proven itself on cloud platforms and services:

  • Microsoft Azure
  • Amazon Web Services (AWS)
  • Google Cloud Platform
  • SharePoint
  • Docker
  • etc.

Reasonable prices

     The library offers developers the high quality conversion at reasonable prices. The main point of interest is that PDF Focus .Net is less expensive than all of its more or less popular counterparts. For example, a single license for PDF Focus .Net - HTML Edition cost $499(US) and the Total Edition starts from $778(US).


To see this functionality firsthand, download the freshest «PDF Focus .Net» with code examples, 104.0 Mb.


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