How to set margins of document display pages
Hello @yuhui
Please refer this page to check out how to set up margins of the document in our editors:
https://helpcenter.onlyoffice.com/onlyoffice-editors/onlyoffice-document-editor/usageinstructions/setpageparameters.aspx
If you want to set up margins for Page Numbers then you can double click on the footer/header and set the left/right position values in the Paragraph settings menu on the right sidebar:
and up/down in the Header and Footer settings menu:
