Writer Document

I have an A4 page display when I select writer document. This displayed page, (on-screen dimension width) was about 18cm wide. (Scale showed width was 19cm, but it was near enough to be OK.)
This morning, the A4 page display has shrunk, to about 13cm wide. Everything has scaled down, compared to before. How do I get my dear old A4 blank page back up to something like life-size?

If you have selected A4 for the page size A4 = A4 remains. I assume you mean the zoom level for the display, right?
You can adjust the zoom level in the menu via View>Scale or at the bottom right in the “status bar”.

Note: The page A4 has the dimensions 29,7 x 21 cm.

Thanks to m.a.riosv of Coruna, Spain. Gave me the answer. The slide in the bottom RH corner of the status bar. Adjusted the size of my A4 page. Superb. Many thanks. ( And thanks to ebot just now, also ! )

Back to work now !