Edit PowerPoint PPT/PPTX Presentations using C#

readme.md

Related Article(s):

• Edit Presentations PPT/PPTX in C#
• Online Presentation Editor - PPT/PPTX Editing

EditPresentation.cs

// Edit PPT/PPTX presenatations in C# using GroupDocs presentation editing and automation API
using (FileStream fs = File.OpenRead("path/presentation.pptx"))
{
    // Load Presentation
    Options.PresentationLoadOptions loadOptions = new PresentationLoadOptions();
    loadOptions.Password = "P@$$w0Rd";

    // Edit Presentation
    using (Editor editor = new Editor(delegate { return fs; }, delegate { return loadOptions; }))
    {
        Options.PresentationEditOptions editOptions = new PresentationEditOptions();
        editOptions.SlideNumber = 0;            // 1st slide
        editOptions.ShowHiddenSlides = true;

        using (EditableDocument beforeEdit = editor.Edit(editOptions))
        {
            string originalContent = beforeEdit.GetContent();
            List<IHtmlResource> allResources = beforeEdit.AllResources;
            string editedContent = originalContent.Replace("documents", "presentation");
            
            // Save Presentation
            using (EditableDocument afterEdit = EditableDocument.FromMarkup(editedContent, allResources))
            {
                Options.PresentationSaveOptions saveOptions = new PresentationSaveOptions(PresentationFormats.Pptm);
                saveOptions.Password = "new_pa$$word";

                using (FileStream outputStream = File.Create("path/edited-presentation.pptx"))
                {
                    editor.Save(afterEdit, outputStream, saveOptions);
                }
            }
        }
    }
}