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Slide Thumbnail Looks Different from the Slide

hi,

we are using the following code to create thumbnails of slides.
int width = 800;
int height = 450;
using (IPresentation presentation = PresentationFactory.Instance.ReadPresentation(presentationStream))
{
ISlide firstSlide = presentation.Slides[0];
using (Bitmap bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb))
{
using (Graphics graphics = Graphics.FromImage(bitmap))
{
firstSlide.RenderToGraphics(false, graphics, width, height);
}
using (MemoryStream memoryStream = new MemoryStream())
{
bitmap.Save(memoryStream, ImageFormat.Png);
}
}
}

But the thumbnail for the attached presentation looks a little different from the slide, when the presentation is opened in Office 2016. Could you please help us to solve the problem? Thanks a lot!

Best Regards
Jeff
Aspose Thumbnail.zip (22.7 KB)

@JeffChiang1979,

I have worked with the presentation file shared by you and have been able to observe the issue specified. An issue with ID SLIDESNET-39384 has been created in our issue tracking system to further investigate and resolve the issue. This thread has been linked with the issue so that you may be automatically notified once the issue will be fixed.

hi fayyaz, can I get a feedback of the status of this ticket? thank you!

@jiang-1,

I have verified from our issue tracking system and regret to share that issue is blocked owing to limitation of text rendering engine. The tentative ETA for the issue is by end of Q1 of 2018. We are sorry for your inconvenience and request for your patience till the time the issue gets resolved.