EVO HTML to PDF Converter

Set PDF Viewer Preferences for the Generated PDF Document

EVO PDF Client for .NET Documentation

EVO HTML to PDF Converter allows you to set various PDF viewer preferences to be used when the generated PDF document is displayed in a PDF viewer. You can hide the viewer menu and toolbar, you can instruct the viewer to initially display the bookmarks, thumbnails or attachments and you can select the page layout to one or two columns.

The PDF viewer preferences can be set in DocumentViewerPreferences object. The most important options are detailed below.

PDF Viewer Preferences

Code Sample - Set PDF Viewer Preferences for the Generated PDF Document
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protected void convertToPdfButton_Click(object sender, EventArgs e)
{
    // Create a PDF document
    Document pdfDocument = new Document();

    // Set license key received after purchase to use the converter in licensed mode
    // Leave it not set to use the converter in demo mode
    pdfDocument.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";

    // Add a page to PDF document
    PdfPage pdfPage = pdfDocument.AddPage();

    // Set the PDF Viewer Preferences

    // Set page layout to continuous one column, single page, two column left, two column right
    pdfDocument.ViewerPreferences.PageLayout = SelectedPageLayout();
    // Set page mode to default, display attachments, display thumbnails, display attachments
    pdfDocument.ViewerPreferences.PageMode = SelectedPageMode();

    // Hide the viewer menu
    pdfDocument.ViewerPreferences.HideMenuBar = hideMenuBarCheckBox.Checked;
    // Hide the viewer toolbar
    pdfDocument.ViewerPreferences.HideToolbar = hideToolbarCheckBox.Checked;
    // Hide scroll bars and navigation controls
    pdfDocument.ViewerPreferences.HideWindowUI = hideWindowUICheckBox.Checked;

    // Display the document title in viewer title bar
    pdfDocument.ViewerPreferences.DisplayDocTitle = displayDocTitleCheckBox.Checked;

    try
    {
        // Create a HTML to PDF element to add to document
        HtmlToPdfElement htmlToPdfElement = new HtmlToPdfElement(urlTextBox.Text);

        // Optionally set a delay before conversion to allow asynchonous scripts to finish
        htmlToPdfElement.ConversionDelay = 2;

        // Add the HTML to PDF element to document
        pdfPage.AddElement(htmlToPdfElement);

        // Save the PDF document in a memory buffer
        byte[] outPdfBuffer = pdfDocument.Save();

        // Send the PDF as response to browser

        // Set response content type
        Response.AddHeader("Content-Type", "application/pdf");

        // Instruct the browser to open the PDF file as an attachment or inline
        Response.AddHeader("Content-Disposition", String.Format("attachment; filename=Set_PDF_Viewer_Preferences.pdf; size={0}", outPdfBuffer.Length.ToString()));

        // Write the PDF document buffer to HTTP response
        Response.BinaryWrite(outPdfBuffer);

        // End the HTTP response and stop the current page processing
        Response.End();
    }
    finally
    {
        // Close the PDF document
        pdfDocument.Close();
    }
}