Export Presentations to PDF
Export visible slides, include hidden slides deliberately, or specify one-based slide positions in the desired order. JPEG quality and resolution influence images; they do not guarantee a particular file size. This fixture includes text, a chart, a table and an image.
Run the example
Download the complete project. It includes all source, SDK settings and locked NuGet dependencies. The code creates its own four-slide input with a hidden slide, speaker notes, a table, chart and picture.
These projects were tested on Windows x64 with Arial and the .NET SDK 8.0.427 pinned by global.json. Their synthetic picture generator uses System.Drawing on Windows. For a separately tested Linux environment, see the Docker converter. Restore the pinned Aspose.Slides.NET package and set ASPOSE_LICENSE_PATH to your license file for unrestricted results; evaluation mode adds a watermark and limits extracted text. See installation and licensing.
dotnet run --project Example.csproj --configuration Release
Complete C# example
using System;
using System.IO;
using System.Linq;
using System.Drawing;
using System.Text.Json;
using Aspose.Slides;
using Aspose.Slides.Animation;
using Aspose.Slides.Charts;
using Aspose.Slides.Export;
using Aspose.Slides.SlideShow;
internal static class Program
{
private static void Main()
{
var licensePath = Environment.GetEnvironmentVariable("ASPOSE_LICENSE_PATH");
if (!string.IsNullOrWhiteSpace(licensePath)) new License().SetLicense(licensePath);
using var source = CreateSource();
source.Save("source.pptx", SaveFormat.Pptx);
source.Save("visible.pdf", SaveFormat.Pdf, new PdfOptions { ShowHiddenSlides = false });
source.Save("all-slides.pdf", SaveFormat.Pdf, new PdfOptions { ShowHiddenSlides = true });
source.Save("selected.pdf", new int[] { 3, 1 }, SaveFormat.Pdf, new PdfOptions());
source.Save("quality-high.pdf", SaveFormat.Pdf, new PdfOptions { JpegQuality = 95, SufficientResolution = 300 });
source.Save("quality-small.pdf", SaveFormat.Pdf, new PdfOptions { JpegQuality = 35, SufficientResolution = 72 });
Report(new { visible_slides = source.Slides.Count(s => !s.Hidden), all_slides = source.Slides.Count, selected_order = "Charlie,Alpha" });
}
private static Presentation CreateSource()
{
var deck = new Presentation();
deck.SlideSize.SetSize(640, 360, SlideSizeScaleType.DoNotScale);
var layout = deck.LayoutSlides.GetByType(SlideLayoutType.Blank);
string[] labels = { "Alpha", "Bravo", "Charlie", "Hidden" };
for (int i = 0; i < labels.Length; i++)
{
var slide = i == 0 ? deck.Slides[0] : deck.Slides.AddEmptySlide(layout);
var shape = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 30, 20, 580, 55);
shape.TextFrame.Text = labels[i];
shape.TextFrame.Paragraphs[0].Portions[0].PortionFormat.LatinFont = new FontData("Arial");
shape.TextFrame.Paragraphs[0].Portions[0].PortionFormat.FontHeight = 26;
slide.NotesSlideManager.AddNotesSlide().NotesTextFrame.Text = "Speaker note " + labels[i];
slide.Hidden = i == 3;
}
var table = deck.Slides[0].Shapes.AddTable(30, 100, new double[] { 140, 100 }, new double[] { 35, 35 });
table[0, 0].TextFrame.Text = "Product";
table[1, 0].TextFrame.Text = "Units";
table[0, 1].TextFrame.Text = "Pens";
table[1, 1].TextFrame.Text = "12";
deck.Slides[1].Shapes.AddChart(ChartType.ClusteredColumn, 30, 100, 400, 220);
using (var bitmap = new Bitmap(100, 60))
{
using (var graphics = Graphics.FromImage(bitmap)) graphics.Clear(Color.CornflowerBlue);
using var stream = new MemoryStream();
bitmap.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
var image = deck.Images.AddImage(stream.ToArray());
deck.Slides[2].Shapes.AddPictureFrame(ShapeType.Rectangle, 50, 120, 200, 120, image);
}
deck.Slides[0].Timeline.MainSequence.AddEffect(deck.Slides[0].Shapes[0], EffectType.Fade, EffectSubtype.None, EffectTriggerType.AfterPrevious);
deck.Slides[0].SlideShowTransition.Type = TransitionType.Fade;
return deck;
}
private static void Report(object values)
{
string json = JsonSerializer.Serialize(values, new JsonSerializerOptions { WriteIndented = true });
File.WriteAllText("result.json", json);
Console.WriteLine(json);
}
}
Expected result
The program writes “visible.pdf”, “all-slides.pdf”, “selected.pdf”, “quality-high.pdf”, “quality-small.pdf” beside the project, plus the synthetic source.pptx and a result.json summary. Inspect the rendered/exported files with the viewer appropriate to the format. Input generation is visible in CreateSource; replace it with opening your own presentation when adapting the example.
Continue with the detailed guide.