IronPDF 中的完美像素 HTML 格式化

Curtis Chau

Updated: 2026年4月22日

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要讓您的 PDF 看起來完美，您需要開發出色的 HTML 模板或請一位網頁開發人員幫您完成。這篇故障排除文章摘自完整的除錯 HTML 教程。

1. 除錯並測試您的 HTML

您可以在 Chrome 或類似的桌面瀏覽器中除錯您的 HTML、CSS 和 JS。然後，當您知道它完美運行時，將其連接到 IronPDF，它將顯示得和在 Chrome 中一模一樣。

基本用法

此程式碼範例將呈現與最新的 Chrome 桌面瀏覽器一致的完美像素 PDF。

// Create a new ChromePdfRenderer instance
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Set the CSS media type to 'Print'
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;

// Ensure HTML backgrounds are printed
renderer.RenderingOptions.PrintHtmlBackgrounds = true;

// Create a new ChromePdfRenderer instance
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Set the CSS media type to 'Print'
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;

// Ensure HTML backgrounds are printed
renderer.RenderingOptions.PrintHtmlBackgrounds = true;

' Create a new ChromePdfRenderer instance
Dim renderer As New ChromePdfRenderer()

' Set the CSS media type to 'Print'
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print

' Ensure HTML backgrounds are printed
renderer.RenderingOptions.PrintHtmlBackgrounds = True

' Create a new ChromePdfRenderer instance
Dim renderer As New ChromePdfRenderer()

' Set the CSS media type to 'Print'
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print

' Ensure HTML backgrounds are printed
renderer.RenderingOptions.PrintHtmlBackgrounds = True

高級 HTML 開發

進階的 Chrome 使用者開發人員可以通過使用 IronPDF 的預設設置並啟用 'Emulate CSS media > Screen' 選項來達到 100% 的精確度。更多資訊可以在這裡找到。

// Create a new ChromePdfRenderer instance
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Set the CSS media type to 'Screen' for better preview consistency
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Screen;

// Ensure HTML backgrounds are printed
renderer.RenderingOptions.PrintHtmlBackgrounds = true;

// Create a new ChromePdfRenderer instance
ChromePdfRenderer renderer = new ChromePdfRenderer();

// Set the CSS media type to 'Screen' for better preview consistency
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Screen;

// Ensure HTML backgrounds are printed
renderer.RenderingOptions.PrintHtmlBackgrounds = true;

' Create a new ChromePdfRenderer instance
Dim renderer As New ChromePdfRenderer()

' Set the CSS media type to 'Screen' for better preview consistency
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Screen

' Ensure HTML backgrounds are printed
renderer.RenderingOptions.PrintHtmlBackgrounds = True

' Create a new ChromePdfRenderer instance
Dim renderer As New ChromePdfRenderer()

' Set the CSS media type to 'Screen' for better preview consistency
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Screen

' Ensure HTML backgrounds are printed
renderer.RenderingOptions.PrintHtmlBackgrounds = True