How can I override some pages without numbering in LibreOffice Writer

How can I override some pages without numbering in LibreOffice Writer ?

For example: I want to write document with 20 pages (numbering in the footer)
but the pages (1st, 10th, 15th and 20th) without numbers.

You can use two page styles. Press F11 to bring up the Styles Menu, Choose Page Styles. Then modify (right click) the First Page style to give you the page without numbers. By default it will give you the Default Style as the following pages. Modify this to your layout with footing and page number. When you want a page without page numbers, say New Chapter, select the First Page style and then repeat the previous sequence.

Styles are a very convenient way to control your output and save time for repetitive work. Hope this helps… Peter

Please check my answer in the following topic: I have a nine page document. I want a footer on page 2, 3, 4, 5, and 7. How do I do it?

Thank you both