How to Change Proofing Language for All Text in PowerPoint
Question details
The user needs to change the spelling and grammar proofing language for all text across an entire presentation, including placeholders and slide notes.

- Product
- PowerPoint
- Device & OS
- not provided
- Scenario
- A user is editing a presentation and needs to standardize the proofing language for all slides to ensure spell check functions correctly for the target language.
- Observed behavior
- To avoid manually changing the language on every single slide or text box, the user wants a method to apply a uniform language setting throughout the entire PowerPoint file.
Before attempting the XML editing method, always save a backup copy of your original .pptx file in case the formatting gets corrupted during the text replacement process.
Use Outline View for Standard Placeholders
This is the quickest method to change the language for all text contained within standard slide placeholders.
This method is fast and straightforward. However, it only affects text inside standard presentation placeholders. Text boxes or shapes added manually will not appear in the outline and will not be updated.
Open your PowerPoint presentation, navigate to the View tab on the ribbon, and select Outline View.
Click anywhere inside the outline pane on the left side of the screen and press Ctrl + A to select all the text in the presentation.
Go to the Review tab, click on Language, and select Set Proofing Language. Choose your desired language from the list and click OK.

Edit the Presentation XML Data
Convert the presentation to an XML file and replace the language tags to update every piece of text, including custom text boxes and notes.
Manage Presentation Languages Easily with WPS Office
WPS Presentation provides a highly compatible, free alternative to Microsoft PowerPoint. It offers an intuitive interface where you can easily manage spell check and proofing languages for your slides without resorting to complex XML workarounds.
- 1. Open your presentation: Launch WPS Presentation and open the document you wish to edit.
- 2. Select your text: Highlight the text boxes or use the Outline pane to select the content you want to adjust.
- 3. Access spell check tools: Navigate to the Review tab on the top ribbon.
- 4. Set the proofing language: Click on Spell Check, select Set Language, choose your preferred language from the menu, and apply.

Frequently Asked Questions
Why doesn't changing the language in Outline View affect my custom text boxes?
The Outline View only displays text that is typed into standard slide placeholders provided by the slide layout. Any text in manually added text boxes or shapes is ignored in this view, so the language setting won't be applied to them.
Where can I find the correct language code for the XML method?
Microsoft uses standard BCP 47 language tags. For example, 'en-US' is for US English, 'en-GB' is for UK English, 'en-CA' is for Canadian English, and 'fr-FR' is for French. You can find a full list of these locale language codes online.
Can I change the proofing language for just a single text box or shape?
Yes, simply highlight the specific text within the text box or shape, navigate to the Review tab, click Language, select Set Proofing Language, and choose your preferred language. This will apply the change only to the selected text.
Will changing the proofing language translate my text automatically?
No, changing the proofing language only tells PowerPoint which language dictionary to use when checking for spelling and grammar errors. It does not automatically translate the actual words into another language.




