Question

You can't insert a page number as a header

Answer 1

Answer:

Use the Page field code to insert page numbers

Go to Header & Footer > Field. In the Field names list, Select Page, and then select OK. To change the numbering format, go to Header & Footer > Page Number > Format Page Numbers. Select the format you want, and then select OK.

Answer 2

Answer:

Use the Page field code to insert page numbers

Go to Header & Footer > Field. In the Field names list, Select Page, and then select OK. To change the numbering format, go to Header & Footer > Page Number > Format Page Numbers. Select the format you want, and then select OK.