Add a blank page to the PDF

Add a blank page to the PDF.
When to use it?
If you want to add one or more blank pages to the PDF.
What part of PDF is affected by it?
The PDF remains in the same form, only the page number changes.
What to watch for?
The size of the blank page will match the size of the selected page.
How to use it?
Find the page in front of or behind you to insert a blank page or pages.
For example: insert a blank page PDF in front of page 2 :