White boxes appear around autoshapes in PPT files

I’ve got a powerpoint presentation where the GetThumbnail is rendering white backgrounds on autoshapes. This issue only appears for PPT files. PPTX files are rendering fine.


I’ve attached the powerpoint presentation and the output image I’m getting.

I’m running ASPOSE Slides 5.7.0.0 on ASP.NET 4.0 using IIS 7.0 on Windows 7.

I’m using the below code to generate the preview image:

            Image fullImage = slide.GetThumbnail(1, 1);

        <span style="color: rgb(43, 145, 175); ">MemoryStream</span> imageStream = <span style="color: blue; ">new</span> <span style="color: rgb(43, 145, 175); ">MemoryStream</span>();
        fullImage.Save(imageStream, <span style="color: rgb(43, 145, 175); ">ImageFormat</span>.Png);</pre></div>

Hi Muppets,


I have worked with the presentation file shared by you and have been able to observe the issue specified in the generated thumbnail. An issue with ID 32444 has been created in our issue tracking system to further investigate and resolve the issue. We will share the further information with you as soon as the issue will be resolved.

We are sorry for your inconvenience,

The issues you have found earlier (filed as SLIDESNET-32444) have been fixed in this update.