Convert PowerPoint file to PDF in C# and VB.NET

With GemBox.Presentation you can easily convert presentations from one format to another, using just C# or VB.NET code. You can load or read any supported input file format and save or write it as any supported output file format.

You can find the full list of formats on the Supported File Formats help page.

The following examples show some commonly required file format conversions.

Convert PowerPoint presentations to PDF

For both reading and writing, you can either provide the file's path or a stream by using one of the PresentationDocument.Load or PresentationDocument.Save methods.

The following example shows how you can convert a PowerPoint presentation to a PDF using the default LoadOptions and SaveOptions.

PDF converted from PowerPoint file with GemBox.Presentation
Screenshot of PDF converted from PowerPoint file with GemBox.Presentation
Upload your file (Drag file here)
using GemBox.Presentation;

class Program
{
    static void Main()
    {
        // If using Professional version, put your serial key below.
        ComponentInfo.SetLicense("FREE-LIMITED-KEY");

        var presentation = PresentationDocument.Load("%InputFileName%");

        // In order to achieve the conversion of a loaded PowerPoint file to PDF,
        // we just need to save a PresentationDocument object to desired 
        // output file format.
        presentation.Save("Convert.%OutputFileType%");
    }
}
Imports GemBox.Presentation

Module Program

    Sub Main()

        ' If using Professional version, put your serial key below.
        ComponentInfo.SetLicense("FREE-LIMITED-KEY")

        Dim presentation = PresentationDocument.Load("%InputFileName%")

        ' In order to achieve the conversion of a loaded PowerPoint file to PDF,
        ' we just need to save a PresentationDocument object to desired 
        ' output file format.
        presentation.Save("Convert.%OutputFileType%")
    End Sub
End Module

Convert PowerPoint presentations to PDF/A

Also, GemBox.Presentation supports saving the PowerPoint presentation to PDF/A, an ISO-standardized version of the Portable Document Format (PDF) specialized for use in the archiving and long-term preservation of electronic documents.

The following example shows how you can convert a PowerPoint presentation to PDF/A using PdfConformanceLevel to specify conformance level and version.

PDF/A converted from PowerPoint file with GemBox.Presentation
Screenshot of PDF/A converted from PowerPoint file with GemBox.Presentation
Upload your file (Drag file here)
using GemBox.Presentation;

class Program
{
    static void Main()
    {
        // If using Professional version, put your serial key below.
        ComponentInfo.SetLicense("FREE-LIMITED-KEY");

        PdfConformanceLevel conformanceLevel = %PdfConformanceLevel%;

        // Load PowerPoint file.
        var presentation = PresentationDocument.Load("%InputFileName%");

        // Create PDF save options.
        var options = new PdfSaveOptions()
        {
            ConformanceLevel = conformanceLevel
        };

        // Save to PDF file.
        presentation.Save("Output.pdf", options);
    }
}
Imports GemBox.Presentation

Module Program

    Sub Main()

        ' If using Professional version, put your serial key below.
        ComponentInfo.SetLicense("FREE-LIMITED-KEY")

        Dim conformanceLevel As PdfConformanceLevel = %PdfConformanceLevel%

        ' Load PowerPoint file.
        Dim presentation = PresentationDocument.Load("%InputFileName%")

        ' Create PDF save options.
        Dim options As New PdfSaveOptions() With
        {
            .conformanceLevel = conformanceLevel
        }

        ' Save to PDF file.
        presentation.Save("Output.pdf", options)

    End Sub
End Module

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If you want to try the GemBox.Presentation yourself, you can download the free version. It delivers the same performance and set of features as the professional version, but with some operations limited. To remove the limitation, you need to purchase a license.