Changing Language to apply to all slides
We share PowerPoint documents with Canada, and many times the language is not set to English, it is set to French. It shows many spelling errors in spellcheck and I can't set the language back to English to all slides at once. Each text box requires an individual language. I tried changing to outline mode and it still did not change. Sorry, I shouldn't have to set a macro to change the language in a presentation.
It should be a one click update to change language.

111 comments
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Frank commented
What I need is simply to be allowed to keep my KEYBOARD LAYOUT in French and create PowerPoint files that in ENGLISH all the way through without having to change each box or whatever to English over and over again.
The suggestions using Outline etc. are not good solutions. You have to repeat it and it does not comprise all elements.
Please....after decades of using PowerPoint please implement this feature, there is nothing more irritating than this in my daily work. -
Vitor Furlan commented
Yossif Marinov · SOLUTION: You go to View -> Outline view then Ctrl+A to select all and switch to the Review menu and then Language -> Set proofing language.
THANK YOU, THANK YOU, THANK YOU. -
Ben commented
Yossif Marinov's answer seems good except for one tiny problem. "Set proofing language" is greyed out. Grrrr! Why, Microsoft?
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Yossif Marinov commented
SOLUTION: You go to View -> Outline view then Ctrl+A to select all and switch to the Review menu and then Language -> Set proofing language
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Matthias commented
Based on existing Macros by other people, I made a PPTM with small user interface where you can apply a spelling language to multiple PPTs on all slides, shapes and also shapes in the notes view as well as tables.
Download from: https://github.com/MatthiasZbinden/MSOfficeTools
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Anonymous commented
Totally agree, this should not be an external macro, is should be integrated in the software. And I need ways to do it also on the master slides.
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Emma commented
Macro to change the language of an entire PowerPoint presentation (including speaker notes): https://gist.github.com/tijme/220cc0efd79ad269c3a90b29740fe54e
Substitute EnglishUS with the languages of your choice
https://docs.microsoft.com/en-us/previous-versions/office/developer/office-2007/aa432635(v=office.12) -
Max commented
There are also many situations where at first, the language setting is available at the bottom left, but once I do "Ctrl-A", that disappears (therefore, no way for me to change the language setting).
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Lowis commented
View → Outline → select all slides (in a left menu) via Ctrl+A.
Review → Language → Set Proofing Language... → Choose your language to set. -
David Markham commented
I just can't believe in 2021 I have to change the proofing language slide by slide. Unbelievable.
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Tom commented
This is long needed feature for all multinational companies. Please add this to the development plans.
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Johannes Kalliauer commented
Every troll writing "me too" should be banned and should be reported! You are making the tread unreadably long, which makes it programmers more difficult to fix.
If you want the bug to be fixed, delete you answer.
If you want to hinder bugfixing, write "Please fix", but be aware that might lead to banning due to trolling. -
Connie commented
Would love that too
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Anonymous commented
I agree it's very inconvenient when you work on presentations in several languages
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Anonymous commented
I wish this would be implemented!
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Tom commented
Changing proofing language on all or selected PowerPoint slides at once is vitally needed. esp. whenever users are working with keyboards with several language layouts.
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Erik commented
Yes, this is the biggest pain point in my daily work too.. Please Fix!! Totally agree with the comment below mine!
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Anonymous commented
Or at least if you put this dumb arse proofing language to behave on character level:
IF I SELECT THE WHOLE SLIDE
OR THE WHOLE TEXTBOXTHEN APPLY THE SELECTED LANGUAGE TO ALL CURRENT AND FUTURE CHARACTERS IN THOSE UNLESS SAID OTHERWISE
Incredible how incompetent this solution is for a Business standard application.
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Harald M commented
Balaz Dedinszky - my hero!!! It's totally incredible why these problems have not been solved YEARS ago. I'm plundering MANY TIMES EVERY DAY with this SILLY language problem. It's so time consuming - and annoying as we know there must be possibe to fix the software
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Anonymous commented
I'd like to second what Balaz Dedinszky said. Why is it so difficult for American companies to understand that there are a whole lot of multilingual people out there who work in several languages? Sheesh! I've been waiting for them to fix this issue for YEARS.