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PPTX Converter – Transform PowerPoint Presentations

Convert PowerPoint PPTX presentations to PDF, images, and other formats.

Step 1: Upload your files

You can also Drag and drop files.

Step 2: Choose format
Step 3: Convert files

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What is PPTX?

PPTX is Microsoft PowerPoint's modern presentation format, introduced with Office 2007. It replaced the older PPT format and remains the standard for PowerPoint documents today.

PPTX files use the Office Open XML standard (ISO 29500), storing slides, text, images, and multimedia as compressed XML. This makes files smaller than PPT, more secure (no macros by default), and more compatible with other software.

PPTX supports advanced features including modern animations, transitions, embedded fonts, 3D effects, and high-resolution media that weren't possible in the older format.

Why Convert PPTX Files?

PPTX conversion addresses many practical needs:

  • Universal sharing – PDF format lets anyone view your presentation without PowerPoint
  • Image export – Convert slides to JPG or PNG for websites, social media, or other uses
  • Legacy compatibility – PPT format for users with older PowerPoint versions
  • Open standards – ODP format works with LibreOffice Impress
  • Video creation – Export presentations as video files
  • Creating PPTX – Convert PDF, images, or other formats TO PPTX for editing

Convert PPTX to Other Formats

Transform your PowerPoint presentations for different purposes:

PPTX to PDF

The most popular conversion. Create professional PDF documents from your presentations for sharing, printing, or archiving. Recipients don't need PowerPoint to view the content.

PPTX to JPG

Convert each slide to a JPEG image. Perfect for sharing on social media, embedding in websites, or creating image-based content from your slides.

PPTX to PNG

Export slides as PNG images with transparency support. Ideal for high-quality graphics, slides with logos, or content requiring transparent backgrounds.

PPTX to PPT

Downgrade to legacy PowerPoint format for compatibility with Office 2003 and earlier. Some modern features may be simplified.

PPTX to ODP

Convert to OpenDocument Presentation format for editing in LibreOffice Impress or other open-source presentation software.

PPTX to TXT

Extract all text content from your presentation slides. Useful for content repurposing, accessibility, or creating scripts from presentations.

Convert Other Formats to PPTX

Create PowerPoint presentations from various sources:

PDF to PPTX

Transform PDF presentations into editable PowerPoint slides. Perfect for updating old presentations saved only as PDF or repurposing PDF content.

PPT to PPTX

Modernize legacy PowerPoint files to the current format. Reduces file size and enables modern PowerPoint features and better security.

ODP to PPTX

Convert LibreOffice Impress presentations for editing in PowerPoint. Ensures compatibility when collaborating with Microsoft Office users.

Images to PPTX

Create presentations from image files. Each image becomes a slide—perfect for photo slideshows, portfolios, or visual presentations.

Google Slides to PPTX

Export Google Slides presentations for offline use in PowerPoint. Download from Google Drive in PPTX format for full editing.

PPTX Technical Specifications

  • Full name: Office Open XML Presentation
  • Developer: Microsoft Corporation
  • First released: 2007 (with Office 2007)
  • File extension: .pptx
  • MIME type: application/vnd.openxmlformats-officedocument.presentationml.presentation
  • Structure: ZIP archive containing XML files
  • Standards: ECMA-376, ISO/IEC 29500
  • Features: Slides, animations, 3D effects, embedded media, speaker notes
  • Maximum recommended size: 50MB for optimal performance

PPTX Compatibility

Software That Opens PPTX Files

  • Microsoft PowerPoint 2007 and later (Windows, Mac)
  • Microsoft 365 (cloud and desktop)
  • Google Slides (free, web-based)
  • LibreOffice Impress (free, cross-platform)
  • Apple Keynote (Mac, iOS)
  • WPS Presentation
  • Most modern presentation applications

PPTX Advantages

  • Smaller file sizes than PPT
  • Cannot contain macros by default (PPTM for macros)
  • Open standard, widely supported
  • Better recovery from file corruption
  • Modern features and effects

How to Convert PPTX Files

  1. Upload your PPTX file – Drag and drop your PowerPoint file or click to browse. We handle large presentations with many slides.
  2. Choose your output format – Select PDF for sharing, images for individual slides, PPT for legacy Office, or other formats.
  3. Download your converted file – Conversion preserves your slides. Download immediately with formatting intact.

Pro Tip

PPTX files are ZIP archives. Rename .pptx to .zip to access the XML and media files inside. This is useful for extracting all images, recovering from corruption, or modifying embedded files.

Common Mistake

Sending PPTX files assuming everyone has PowerPoint. For guaranteed viewing, convert to PDF first. For editable sharing with non-PowerPoint users, ODP format works with free software.

Best For

PPTX is ideal for creating and editing presentations in PowerPoint, collaborative work with Microsoft 365, and presentations requiring advanced animations and effects.

Not Recommended

Avoid sending PPTX for final presentations when you don't want recipients to edit. Convert to PDF to prevent changes. Also convert to video if you want presentations to auto-play.

Frequently Asked Questions

PPTX is Microsoft PowerPoint's modern presentation format, used since PowerPoint 2007. It stores slides, text, images, animations, and multimedia in a compressed XML format. PPTX files are smaller and more secure than the older PPT format.

Upload your PPTX file to ChangeMyFile and select PDF as the output format. The conversion creates a PDF document with each slide as a page, preserving layout and formatting perfectly.

Yes, upload your PPTX file and select JPG or PNG as output. Each slide is converted to a separate image file. PNG supports transparency; JPG is smaller for photos.

PPTX is the modern format (2007+) using XML compression, while PPT is the older binary format (1997-2003). PPTX files are smaller, more secure, and support modern features. Use PPTX for new presentations.

Yes, Google Slides fully supports PPTX files. Upload to Google Drive and open with Slides. Most formatting, transitions, and animations transfer correctly.

Upload your PDF to ChangeMyFile and select PPTX as output. Our converter transforms PDF pages into editable PowerPoint slides, making the content editable again.

Converting to PDF or images removes animations since those formats don't support them. Converting to PPT preserves most animations. Converting to ODP keeps animations with some limitations.

Yes, ChangeMyFile supports batch conversion. Upload multiple PPTX files and convert them all to PDF, images, or other formats simultaneously.

PPTX files are already compressed. To reduce size further, compress images in PowerPoint before saving, remove unused slides, or export to PDF which may be smaller for sharing.

PPTX is PowerPoint's default file format, but PowerPoint can open many formats. When people say 'PowerPoint file' they usually mean PPTX. PowerPoint is the application; PPTX is the file format.

PPTX Conversions & Related Converters

Quick access to the most commonly used file conversions.