如何使用渲染选项

using IronPdf;

// Instantiate Renderer
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Configure rendering options
renderer.RenderingOptions.PrintHtmlBackgrounds = true;
renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter()
{
    HtmlFragment = "<h1>Header Content</h1>"
};
renderer.RenderingOptions.SetCustomPaperSizeinMilimeters(150, 150);
renderer.RenderingOptions.MarginTop = 0;

// Markdown string
string md = "This is some **bold** and *italic* text.";

// Render from markdown string
PdfDocument pdf = renderer.RenderMarkdownStringAsPdf(md);

// Save the PDF
pdf.SaveAs("renderingOptions.pdf");

Imports IronPdf

' Instantiate Renderer
Private renderer As New ChromePdfRenderer()

' Configure rendering options
renderer.RenderingOptions.PrintHtmlBackgrounds = True
renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter() With {.HtmlFragment = "<h1>Header Content</h1>"}
renderer.RenderingOptions.SetCustomPaperSizeinMilimeters(150, 150)
renderer.RenderingOptions.MarginTop = 0

' Markdown string
Dim md As String = "This is some **bold** and *italic* text."

' Render from markdown string
Dim pdf As PdfDocument = renderer.RenderMarkdownStringAsPdf(md)

' Save the PDF
pdf.SaveAs("renderingOptions.pdf")