Build Presentation

Namespace: Clippit.PowerPoint

Combine collection of SlideSource's into one PowerPoint presentations.

public static class PresentationBuilder {
    public static PmlDocument BuildPresentation(List<SlideSource> sources)
    {...}
}

Original behavior is documented at Eric's blog:

https://www.ericwhite.com/blog/presentationbuilder-developer-center/

Major changes

• Removed Custom Properties. Clippit does not copy document properties from the first SlideSource into result document.
• Removed Section List. Clippit copy all slides into Default section and does not copy list of sections from first SlideSource.
• Structural comparison for Theme, Master, Layout. Clippit structurally compare Themes, Masters and Layout and maintain minimal amount of these parts in target presentation to guarantee no visual artifacts on slides in the target presentation.
• Shape auto-scale. Clippit automatically scale all shapes on the slides when you merge slides of different size.

Fixes

• Appropriate file extentions generated for ImageParts based on ContentType (instead of *.bin for all images)
• Fixed multiple write access to the same part
• Optimized Stream lifetime and GC pressure

BuildPresentation Sample

var sources = new List<SlideSource>()
{
    new SlideSource(new PmlDocument(file1), start:0, count:1, keepMaster:true),
    new SlideSource(new PmlDocument(file2), start:9, count:3, keepMaster:false)
};
PresentationBuilder.BuildPresentation(sources)
    .SaveAs(resultFile);

This code combines slides from two PowerPoint presentations:

• It takes Title slide from file1 and copy master using by first slide (with all layouts)
• Then copy three slides from file2 starting from slide 10 without master (reusing master and layouts moved from file1)