Working with PTC Mathcad Prime > Worksheets and Regions > To Insert or Delete Page Breaks
  
To Insert or Delete Page Breaks
1. Place the pointer where you want to insert a page break.
2. On the Document tab, in the Spacing group, click Add Page Break.
3. To delete a page break, use one of the following methods:
Place the pointer directly above the page break and then press Delete.
Alternatively, click Remove Space and select Empty Space.
Place the pointer directly below the page break and then press Backspace.