How to use Virtual Viewport and Zoom

using IronPdf;

// This script demonstrates how to render a web URL as a PDF using IronPdf's ChromePdfRenderer.

// Create an instance of ChromePdfRenderer to handle the rendering of PDFs using a Chrome-based engine
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Configure rendering options to use default Chrome settings for paper size and layout.
// This ensures that the PDF output is consistent with Chrome's default view settings.
renderer.RenderingOptions.PaperFit.UseChromeDefault();

// Specify the web URL and render it to a PDF document
// In this case, we are rendering the Wikipedia main page.
// Ensure that the specified URL is correct and accessible.
PdfDocument pdf = renderer.RenderUrlAsPdf("https://en.wikipedia.org/wiki/Main_Page");

// Save the rendered PDF document to a file.
// The resulting PDF will be named "chromeDefault.pdf" and stored in the current directory.
pdf.SaveAs("chromeDefault.pdf");

using IronPdf;

// Create an instance of ChromePdfRenderer, which will render HTML to PDF
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Configure rendering options for accurate responsive design representation
renderer.RenderingOptions.PaperFit.UseResponsiveCssRendering = true; // Enable CSS responsive rendering for 1280px width
renderer.RenderingOptions.HtmlMediaType = IronPdf.Rendering.PdfHtmlMediaType.Screen; // Specify screen media type for CSS

// Render the Wikipedia main page as a PDF document
// RenderUrlAsPdf takes a URL and converts the web content to a PDF format
PdfDocument pdf = renderer.RenderUrlAsPdf("https://en.wikipedia.org/wiki/Main_Page");

// Save the rendered PDF document to the local file system with the name "responsiveCss.pdf"
pdf.SaveAs("responsiveCss.pdf");

// Import IronPdf to enable PDF rendering capabilities
using IronPdf;

// Instantiate a ChromePdfRenderer object to render PDFs using the Chrome rendering engine
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Configure rendering options for scaled rendering
// PaperFit determines how the content fits on the page.
// Use Scale to specify a custom scaling factor.
// The scale factor is set to 180% of the normal size.
renderer.RenderingOptions.PaperFit = IronPdf.Rendering.PaperSizeFitType.Scale; // Ensures scaling is used
renderer.RenderingOptions.PaperFitScale = 1.80; // Sets the scale factor to 180%

// Render a web URL to a PDF document
// The given URL is the main page of Wikipedia
PdfDocument pdf = renderer.RenderUrlAsPdf("https://en.wikipedia.org/wiki/Main_Page");

// Save the rendered PDF document to a file named "scaled.pdf" in the current directory
pdf.SaveAs("scaled.pdf");

using IronPdf;

// Create a new PDF renderer instance using the Chrome rendering engine
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Configure rendering options to fit the webpage content to a single page
renderer.RenderingOptions.FitToPaperMode = IronPdf.Rendering.FitToPaperMode.SinglePage;

// Render the specified URL as a PDF document
// The "RenderUrlAsPdf" method converts the webpage at the given URL into a PDF document
PdfDocument pdf = renderer.RenderUrlAsPdf("https://en.wikipedia.org/wiki/Main_Page");

// Save the rendered PDF document to a file named "fitToPage.pdf"
// The "SaveAs" method saves the PDF document to the specified file path
pdf.SaveAs("fitToPage.pdf");

using IronPdf;

// Create a PDF renderer object using IronPdf
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Define the width for continuous feed rendering
int width = 90; // The width in millimeters. Adjust as needed for your specific printer or requirements.

// Define the margin for continuous feed rendering
int margin = 0; // Margin in millimeters. Set to 0 for minimum margins.

// Configure the rendering options for using continuous feed
renderer.RenderingOptions.PaperFit.SetContinuousPaper(width, margin);

// Render a local HTML file ("receipt.html") as a PDF document
// Ensure that "receipt.html" is in the same directory as the executing program, or provide the full path.
PdfDocument pdf = renderer.RenderHtmlFileAsPdf("receipt.html");

// Save the rendered PDF document with the specified file name
// The PDF will be saved in the same directory as the executing program unless a full path is specified.
pdf.SaveAs("continuousFeed.pdf");