Here’s a simple and quick guide on how to change page size in Adobe InDesign:
- To change the page size, go to the top menu and click 'File.'
- Select 'Document Setup' to open the Document Setup panel.
- Once the panel opens, go to Page Size and select a size from the dropdown menu, or customize it by entering your desired width and height.
- Once you’re done, click 'OK' to apply the changes.
- You have successfully changed the page size in InDesign.



