Convert PDF to HTML on Server/Desktop

Fixed position
The built-in HTML module is used to convert PDF documents to fixed-position HTML documents.

Full reflow
To convert PDF Documents to HTML format with full reflow.

To convert PDF Documents to HTML format with fixed positioning.

// Convert PDF document to HTML with fixed positioning option turned on (default)
Convert.ToHtml(filename, output_filename);

PDF Converter (SVG, XPS, TIFF, JPG, RTF, TXT, More)
Full sample code which shows how to use PDFNet Convert for direct, high-quality conversion between PDF, XPS, EMF, SVG, TIFF, PNG, JPEG, and other image formats.

To convert PDF Documents to HTML format with full reflow.

Convert.HTMLOutputOptions htmlOutputOptions = new Convert.HTMLOutputOptions();

// Set e_reflow_full content reflow setting
htmlOutputOptions.SetContentReflowSetting(Convert.HTMLOutputOptions.ContentReflowSetting.e_reflow_full);

// Convert PDF document to HTML with full reflow option turned on
// But requires the Structured Output module
Convert.ToHtml(filename, output_filename, htmlOutputOptions);

To convert PDF Documents to HTML format with reflow paragraphs.

Convert.HTMLOutputOptions htmlOutputOptions = new Convert.HTMLOutputOptions();

// Set e_reflow_paragraphs content reflow setting
htmlOutputOptions.SetContentReflowSetting(Convert.HTMLOutputOptions.ContentReflowSetting.e_reflow_paragraphs);

// Optionally set to flow paragraphs across the entire browser window.
htmlOutputOptions.SetNoPageWidth(true);

// Convert PDF document to HTML with reflow paragraphs option turned on
// But requires the PDF2HtmlReflowParagraphsModule
Convert.ToHtml(filename, output_filename, htmlOutputOptions);

Convert PDF to HTML Sample Code
Full sample code which shows how to convert generic PDF documents to HTML format

The following table illustrates which options apply to which conversion engines.

Depending on your use case, PDF to HTML can be used for rendering with high fidelity and accuracy or to primarily be used in content extraction. This means our tools can help you to display the output or be used in data analysis workflows.

Here are the different options for PDF to HTML conversion depending on your requirements:

Here are the options for maintaining the original PDF layout and visual accuracy.

WebViewer
To convert PDF to HTML canvas in real-time client-side.

PDF to HTML/ePub
To convert PDF to fixed layout HTML/ePub where one PDF page becomes one HTML file.

PDF2SVG
To convert PDF to SVG to create a vector based image that can be embedded in an HTML file.

PDF2Image
To convert PDF to Image (PNG, JPG, TIFF, Raw) to create a raster based image that can be embedded in an HTML file.

Here are the options for extracting semantic content from the output.

PDF2HTML
To convert PDF to a single HTML file that preserves the PDF content using a custom heuristic method.