Namespace IronPdf.Rendering

Classes

ChangeTrackingModes

Determines if hashes are generated of all objects upon opening a document.

Very slow for large documents.

Must be enabled for multiple signatures or revisions.

Should be disabled if it corrupts documents signed by 3rd parties.

PdfCssMediaType

Defines which style-sheet should be rendered. 'Print' or 'Screen'. This matches the CSS3 Media Queries standard.

PdfPageRotation

PageRotation setting of a PDF page

PdfPaperOrientation

Paper orientation when rendering HTML to PDF

PdfPaperSize

Defines the target virtual paper size the PDF. Relates to real-world paper-sizes.

PdfPaperSizeConverter

Class for converting PDF paper sizes from the PdfPaperSize enum to millimeters.

PdfRenderingEngine

Specifies which HTML to PDF rendering engine to use for document generation. Chrome engine recommended for best compatibility and features.

// Use Chrome engine explicitly:
var renderer = new ChromePdfRenderer {
    RenderingOptions = new ChromePdfRenderOptions {
        RenderingEngine = PdfRenderingEngine.Chrome
    }
};

// Let IronPDF choose (defaults to Chrome):
Installation.RenderingEngine = PdfRenderingEngine.Default;

// Check current engine:
if (Installation.RenderingEngine == PdfRenderingEngine.Chrome) {
    // Using Chrome's advanced features
}

Chrome engine supports latest HTML5/CSS3/JavaScript

Chrome requires more memory but provides better results

See: https://ironpdf.com/how-to/html-to-pdf/

RequestContexts

Browser request contexts for defining relationship between the browser request contexts of individual renders.

Important for cookies and user preferences.