How to Export each slide as high quality png/jpg/gif

Aspose.Slides Product Family
1

Hi,Support:

Is there any way to save each slide as high quality png/jpg/gif based on VB.net?
Would you please show me the code how it work?
Thanks.

Ducaisoft

2

@ducaisoft,

Using Aspose.Slides API, you can generate the slide thumbnail having custom dimensions or scaling factor. This way, you can get a slide image as per desired quality. Please visit this documentation link for your convenience.

3

Thanks for your suggestion.
I used “PPT.Slides(0).GetThumbnail(100, 100).Save(AppPath & “\Tmp.jpg”)”, however, it got no result.
Would you please me show me the code how it work to get the thumbnail image for each slide?

4

@ducaisoft.

The above sample code is syntax wise correct but logically wrong. You have used the scaling factor 100, which is huge. Scaling factor of 1 means that you will have the thumbnail equal to actual slide dimensions in PowerPoint. You need to use the scaling factor 3, 4 or 5 and then share with us.

	public static void TestThumbnailIssue()
	{
		String path = @"C:\Aspose Data\ImageError\";
		var billboardBytes = File.ReadAllBytes(path + "ImageError.pptx");


		// Convert PowerPoint to images and load the image slider.

		MemoryStream stream = new MemoryStream(billboardBytes);
		//stream.Position = 0;
		Presentation powerPoint = new Presentation(stream);

		for (int i = 0; i < powerPoint.Slides.Count; i++)
		{

			var bmp=powerPoint.Slides[i].GetThumbnail(3.0f, 3.0f);
			bmp.Save(path + "Thumbnail_"+(i+1)+".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
		}
	}