PPT to PPTX Converter

Upgrade old PowerPoint 97-2003 presentations to the modern PPTX format.

or drop files here

PPT, PPS, ODP Up to 50 MB Up to 10 files

Secure upload. Files are deleted automatically after 1 hour(s).

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    How to use PPT to PPTX

    1. Select your PPT file or drop it onto the page.
    2. Click "Convert" to start the conversion.
    3. Download the PowerPoint file and open it in Microsoft Office, LibreOffice or Google Docs.

    Why use our PPT to PPTX tool

    Accurate results

    Professional conversion engines keep fonts, layouts, tables and images exactly where they belong.

    Secure and private

    HTTPS encryption, automatic deletion after 1 hour(s) and a button to delete your files immediately.

    Any device

    Works in Chrome, Safari, Firefox and Edge on Windows, Mac, Linux, Android and iOS.

    About the file formats

    PPT (PowerPoint 97-2003)

    PPT is the older binary PowerPoint format. Modern versions of PowerPoint still open it, but PPTX is smaller and more reliable.

    PPTX (Microsoft PowerPoint)

    PPTX is the presentation format of Microsoft PowerPoint since 2007. It contains slides with text, images, charts, animations and speaker notes.

    Frequently asked questions

    Is MajorPDF free to use?

    Yes, completely free. There is no registration and no watermark is added to your files.

    Are my files safe?

    Files are uploaded over an encrypted connection and deleted automatically after 1 hour(s). After downloading you can also delete them immediately with one click.

    What is the maximum file size?

    Each file can be up to 50 MB.