Stack overflow exception while html to pdf conversion

Aspose.PDF Product Family
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1

Dear support team,

We encountered stack overflow exception with some HTML file wile converting them into PDF. Application is getting crashed due to conversion.

Below are the versions for HTML and PDF package

“Aspose.HTML” Version=“24.12.0”
“Aspose.PDF” Version=“25.1.0”

I’ve attached one html file for your reference. Can you please check and let me know your feedback.
SampleHTMLFile.zip (53.7 KB)

2

@amitmalhotra

It sounds like you’re encountering a stack overflow exception during the conversion of certain HTML files to PDF using Aspose. This issue can arise from various factors, such as deeply nested HTML elements or excessive recursion in the HTML structure.

Cause: The stack overflow exception is likely due to the complexity of the HTML structure, which may include excessive nesting or recursive elements.

Solution: Here are some steps to troubleshoot and resolve the issue:

  1. Check HTML Structure: Ensure that the HTML file is well-formed and does not contain excessive nesting or recursive elements that could lead to a stack overflow.

  2. Update Libraries: Make sure you are using the latest versions of Aspose.HTML and Aspose.PDF. Newer releases often contain bug fixes that could resolve your issue.

  3. Use HtmlLoadOptions: When loading the HTML document, consider using HtmlLoadOptions to customize the loading process. For example, you can set properties like IsEmbedFonts or HtmlMediaType to optimize the conversion.

  4. Simplify HTML: If possible, try simplifying the HTML content to identify if a specific part is causing the issue. Gradually add back elements to pinpoint the problematic section.

  5. Error Handling: Implement error handling in your code to catch exceptions and log detailed information about the conversion process. This can help you identify the exact point of failure.

Here’s a minimal code example to get you started with using HtmlLoadOptions:

using Aspose.Pdf;
using Aspose.Pdf.HtmlLoadOptions;

// Load HTML file with options
var options = new HtmlLoadOptions();
using (var document = new Document("input.html", options))
{
    document.Save("output.pdf");
}

Next Steps: If the problem persists after trying these steps, please share the specific HTML file that causes the issue. This will assist in diagnosing the problem further.

Let me know if you need any more assistance!