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>