01 / Presentation boundary
Every change, named by its slide
Both decks are read slide by slide, and every paragraph and table cell becomes its own line. A changed line is listed as Slide N: text changed, an added one as Slide N: text added, and a removed one as Slide N of the original: text removed, so you know where to look without paging through the deck.
When the two presentations have a different number of slides, a note above the result says so, for example: The original has 7 slides and the updated presentation has 8 slides.
02 / Presentation boundary
Step through the changes
The result shows the text of both decks side by side with every changed line highlighted and the changed characters marked, so a figure that went from 89,000 to 88,200 stands out. Use the arrows at the top or Command-G to go from one change to the next, or click a change in the list to jump straight to it.
PowerPoint presentations, templates, and slide shows (PPTX, PPTM, POTX, POTM, PPSX, PPSM) and OpenDocument presentations (ODP, OTP) can be compared.
03 / Presentation boundary
What the comparison does not cover
The comparison uses the text on the slides; layout and styling are not compared, and a note above the result says so. Pictures, charts, animations, and speaker notes are not compared either, so review those in PowerPoint when they matter.
A slide that only moved to another position shows up as text removed in one place and added in another. Older .ppt files and Keynote files are not read as presentations; save the deck as PPTX first.
04 / Presentation boundary
Keep the decks on your computer
Both presentations are read and compared on the Mac or Windows PC running Diff Anything. The app has no account, cloud comparison service, analytics, or telemetry, and no AI is involved.
