Fixing Render Timeout Issues in IronPDF

Curtis Chau

更新日期:9月 10, 2025

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IronPDF 的默認渲染超時時間是 60 秒。如果渲染過程在此時間內未完成，將拋出超時運行時異常。

對於具有大量圖像資產或需要額外時間渲染的輸入，建議調整 RenderDelay 時長。這樣可以在生成 PDF 之前讓資產在虛擬上完全渲染。如果不這樣做，可能會導致 PDF 文件中的資產丟失，甚至是空白 PDF。

要覆蓋默認設置，請調整 ChromePdfRenderOptions 類中的超時時間，並通過 WaitFor 包裝對象在 RenderDelay 方法中指定延遲時間。

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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查看以下文章以獲取有關超時和 RenderDelay 的更多信息。

超時