修复 IronPDF 中的渲染超时问题

Curtis Chau

已更新:九月 10, 2025

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IronPDF的默认渲染超时时间为60秒。如果渲染过程在此期间未完成，将抛出超时运行时异常。

对于具有大量图像资产或需要额外时间进行渲染的输入，建议调整RenderDelay时长。这样可以在生成PDF之前，确保资产已经完全虚拟渲染。不这样做可能导致PDF文档中的资产缺失，甚至产生一个空白的PDF。

要覆盖默认设置，请在ChromePdfRenderOptions类中调整Timeout时长，并通过WaitFor包装对象在RenderDelay方法中指定延迟时长。

示例

// Create a new instance of ChromePdfRenderOptions
ChromePdfRenderOptions renderOptions = new ChromePdfRenderOptions();

// Increase the timeout for the rendering process to 120 seconds
renderOptions.Timeout = 120; // seconds

// Increase the delay before rendering to ensure all assets are fully loaded
renderOptions.WaitFor.RenderDelay(3000); // milliseconds (3 seconds)

// Create a new instance of ChromePdfRenderOptions
ChromePdfRenderOptions renderOptions = new ChromePdfRenderOptions();

// Increase the timeout for the rendering process to 120 seconds
renderOptions.Timeout = 120; // seconds

// Increase the delay before rendering to ensure all assets are fully loaded
renderOptions.WaitFor.RenderDelay(3000); // milliseconds (3 seconds)

' Create a new instance of ChromePdfRenderOptions
Dim renderOptions As New ChromePdfRenderOptions()

' Increase the timeout for the rendering process to 120 seconds
renderOptions.Timeout = 120 ' seconds

' Increase the delay before rendering to ensure all assets are fully loaded
renderOptions.WaitFor.RenderDelay(3000) ' milliseconds (3 seconds)

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查看以下文章以获取有关Timeout和RenderDelay的更多信息。

Timeout