Encountering "The document is not completely loaded. Please wait for 'complete' state....." error when converting HTML to PDF using Aspose.HTML

Aspose.HTML Product Family
1

Hello - I’m encountering “The document is not completely loaded. Please wait for ‘complete’ state…” error when converting HTML to PDF using Aspose.HTML… I’m using the code below to convert…

                ' Initialize an HTML document from the HTML string
                Using document As New Aspose.Html.HTMLDocument(htmlString, ".")

                    ' Initialize PdfDevice with the output stream
                    Using pdfDevice As New Aspose.Html.Rendering.Pdf.PdfDevice(pdfOptions, pageStream)
                        ' Render the HTML document to PDF
                        Dim renderer As New Aspose.Html.Rendering.HtmlRenderer()
                        renderer.Render(pdfDevice, document)
                    End Using
                End Using
2

@kdepadua

The error message “The document is not completely loaded. Please wait for ‘complete’ state…” typically indicates that the HTML document you are trying to convert to PDF is not fully loaded or there are resources that are still being fetched. This can happen for various reasons, such as missing resources, network issues, or JavaScript execution that hasn’t completed.

Here are a few suggestions to troubleshoot and resolve this issue:

  1. Ensure All Resources are Available: Make sure that all resources (like images, CSS, and JavaScript files) referenced in your HTML are accessible and correctly linked. If any resources are missing, it can lead to incomplete loading.

  2. Disable JavaScript: If your HTML relies heavily on JavaScript for rendering content, consider disabling JavaScript during the conversion process. This can be done using sandboxing flags to prevent untrusted resources from executing.

  3. Use a Complete HTML Document: Ensure that the HTML string you are passing to the HTMLDocument constructor is a complete and valid HTML document. It should include the necessary <html>, <head>, and <body> tags.

  4. Check for Network Issues: If your HTML document fetches resources from the web, ensure that there are no network issues preventing these resources from loading.

  5. Use the Converter Class: Instead of manually rendering the document, you can use the Converter class, which simplifies the process. For example, you can convert HTML to PDF with a single line of code using the ConvertHTML method.

Here’s a simple example of using the Converter class to convert HTML to PDF:

' Convert HTML to PDF using the Converter class
Dim outputPath As String = "output.pdf"
Dim htmlString As String = "<html><body>Your HTML content here</body></html>"
Dim options As New Aspose.Html.Saving.PdfOptions()

' Convert HTML to PDF
Aspose.Html.Converters.Converter.ConvertHTML(htmlString, ".", options, outputPath)

By following these steps, you should be able to resolve the issue and successfully convert your HTML to PDF. If the problem persists, consider checking the Aspose documentation for more detailed troubleshooting steps or examples related to HTML to PDF conversion.

Sources:
[1]: Frequently Asked Questions - Aspose.HTML for .NET
[2]: Converting Between Formats - C# Examples - Aspose Documentation

3

Hi @alexey.noskov would you know the solution for the error mentioned? thank you

4

@kdepadua

Can you please share your sample HTML file in .zip format with us? We will test the scenario in our environment and address it accordingly.