You can place the contents of an entire page from another PDF onto the current page of your PDF.

  1. Choose File->Place PDF... and then skip to step 3.
    Alternatively...
  2. Drag & drop a PDF file onto your open document to place a page.
  3. Choose the third option (Place a page...) in the window that appears.
    Place a page from the PDF onto the current page dialogue box
  4. If the document being placed has only 1 page, it is placed immediately. Otherwise, choose the page from the PDF you want to place.
  5. As the page is placed it's contents are grouped together to make it easier to select and move it using the Object tool (Object tool button). Ungroup the page if you need to access objects within it.