ObjectDisposedException: Cannot access a closed Stream

GroupDocs.Conversion Product Family
1

I am having issue while converting .eml and .pptx to PDF using memory stream.
The same code works just fine for .png and *.html.
I just replace the LoadOptions based on the file type.

See below for the LoadOptions I am using.

new EmailLoadOptions
{
Format = EmailFileType.Eml,
ConvertOwned = true,
DisplayHeader = true
}

new PresentationLoadOptions
{
Format = PresentationFileType.Pptx
}

2

Hello @vanderley.correia ,

Thank you for reaching out.
To better understand and resolve the issue, we kindly ask you to provide:

  • the full code snippet used for the conversion,
  • the version of GroupDocs.Conversion you are using,
  • and the specific files (if the issue appears only with some of them).

This information will help us reproduce the issue locally and assist you more efficiently.

3

Hi team,

See below:

Code here: GroupDocsConverter.zip (1.4 KB)
Version: 25.3.0
Files:
Files.zip (455.9 KB)

4

@vanderley.correia ,

Thank you for providing the detailed information.
We will get back to you after completing our further investigation.

5

Hello @vanderley.correia ,

We apologize for the delay.

We have reviewed your document conversion example, and it appears to be incorrect.
The SavePageContext and SaveContext overloads are intended for use when a FileStream is provided.
In your case, since you want to obtain the converted document as a stream and handle it as needed, we recommend using the ConvertedContext overload instead.
Please refer to the sample code below:

var outputStream = new MemoryStream();
var fileName = "PresentationTest.pptx";

using (var fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read))
{
    using (var converter = new GroupDocs.Conversion.Converter(() => fileStream, GetLoadFunction(fileName)))
    {
        var convertOptions = new PdfConvertOptions();
        converter.Convert(
            convertOptions,
            (ConvertedContext convertedContext) =>
            {
                convertedContext.ConvertedStream.CopyTo(outputStream);
                convertedContext.ConvertedStream.Dispose();
            });
    }
}

If you have any further questions, please don’t hesitate to reach out to us.

6

Excellent. It worked like a charm.
Thank you so much for your help.

7

@vanderley.correia ,

Always happy to help. Let us know if you have any other questions.