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Guide · Office

How to combine PowerPoint presentations into one

By Mergevanta · Updated · 2 min read

Quick answer

How do I combine multiple PowerPoint presentations into one?

In PowerPoint, open the main deck, choose Home › Reuse Slides (or New Slide › Reuse Slides), browse to the other presentation and insert its slides, ticking Keep source formatting to preserve their design. To merge whole decks in one step, add the .pptx files to Mergevanta's Merge PowerPoint tool and press Merge.

Method 1: Reuse Slides in PowerPoint

  1. 1Open the presentation the other slides should join, and click the slide after which they should appear.
  2. 2On the Home tab, choose Reuse Slides. In older versions, click the arrow under New Slide and choose Reuse Slides.
  3. 3Browse to the other presentation. Its slides appear in the Reuse Slides pane.
  4. 4Tick Keep source formatting if the slides should keep their original design, then click each slide you want to insert.
  5. 5Save the combined presentation.

Method 2: Merge whole decks with Mergevanta

  1. 1Open Mergevanta's Merge PowerPoint page in any browser.
  2. 2Add two or more .pptx files.
  3. 3Drag the decks into order — the first deck sets the slide size.
  4. 4Press Merge and download one .pptx with every slide, its notes and its media.

Each deck keeps its own theme and layouts. If the decks use different slide sizes, such as 16:9 and 4:3, Mergevanta keeps the first deck's size and warns you so you can adjust afterwards.

Sharing the combined deck as a PDF

If you only need to share or print the slides, export each deck as a PDF from PowerPoint (File › Export) and combine the PDFs with Merge PDF. A PDF looks the same on every device and can't be edited by accident.

Which method should you use?

Which method should you use?
PowerPoint Reuse SlidesMergevanta Merge PowerPoint
Needs PowerPoint installedYesNo — any browser
Pick individual slidesYesNo — whole decks
Merge several decks at onceOne deck at a timeYes
WatermarkNoneNone
CostIncluded with Microsoft 365 or OfficeFree

In short

  • PowerPoint's Reuse Slides inserts individual slides; tick Keep source formatting.
  • Mergevanta merges whole decks at once, keeping themes, layouts and speaker notes.
  • The merged deck uses the slide size of the first file.

Frequently asked questions

In PowerPoint, tick Keep source formatting in the Reuse Slides pane. With Mergevanta, each deck automatically keeps its own theme and layouts.

Yes. Mergevanta's Merge PowerPoint tool is free, with no sign-up and no watermark on your slides.

The merged deck uses the first file's slide size. Mergevanta warns you about the mismatch so you can resize slides in PowerPoint afterwards.

Download each one as a .pptx (File › Download › Microsoft PowerPoint), merge them with Mergevanta, then upload the combined deck back to Google Drive.

More guides

How to merge multiple Word documents into oneCombine several Word documents into one file with Word's Text from File command, or in one step with Mergevanta — keeping styles, numbering and images.How to combine multiple Excel files into one workbookThree ways to combine Excel files: Move or Copy sheets, Power Query for stacking data, or Mergevanta to merge many workbooks and CSVs in one step.How to merge PDF files without a watermarkMerge PDFs free with no watermark, sign-up or page limit: step-by-step instructions, why some tools add watermarks and how to check your PDF is clean.
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