The paper length is not relevant since the chart flows from one page to the next.
Mobile
in.
mm
Portrait
2.75
70
For smart phones, not for printing
Landscape
5.5
140
For smart phones, not for printing
USA & Canada
in.
mm
Letter Portrait
8.5
216
Also Legal Portrait
Letter Landscape
11
279
Legal Landscape
14
356
Also Ledger Portrait
Ledger Landscape
17
432
International
in.
mm
A5 Portrait
5.82
148
A4 Portrait
8.25
210
Also A5 Landscape
A4 Landscape
11.71
297
Also A3 Landscape
A3 Landscape
16.54
420
The Text+ programs assume that the right and left margins are each about 25mm (1/2 inch) wide.
On the Format for Printing page, differences in page margins can be accommodated by the "fudge factor":
Minnie D Dooly
(2 Dec 1879 Georgia, USA - 4 Sep 1969 Cleveland, Bradley County, Tennessee, USA)
James T Trewhitt
(Bradley County, Tennessee, USA;22 Oct 1873 - 14 Sep 1929)
         ├─Nina Mae Trewhitt
(Cleveland, Bradley County, Tennessee, USA;22 Jan 1899 - 3 May 1983)
         ├─Edna Trewhitt
(9 May 1919 Bradley County, Tennessee, USA - 26 Dec 1996 Cleveland, Bradley County, Tennessee, USA)
         ├─Addie Jane Trewhitt
(Cleveland, Bradley County, Tennessee, USA;30 Oct 1900 - Jul 1979)
         │ + Crawford Hayes Wilhoit
(25 Aug 1898 McDonald, Bradley County, Tennessee, USA - Nov 1966 Cleveland, Bradley County, Tennessee, USA)
         ├─Jessie Trewhitt
(Cleveland, Bradley County, Tennessee, USA;7 Dec 1902 - 19 Oct 1965)
         │ Carl Valencourt Wattenbarger
(Cleveland, Bradley County, Tennessee, USA;11 Feb 1898 - 21 Dec 1991)
         │          └─Margaret Evelyne Wattenbarger
(10 Mar 1925 Cleveland, Bradley County, Tennessee, USA -          │           29 Oct 1978 Bunn, Franklin County, North Carolina, USA)
         ├─Marie Trewhitt
(Bradley County, Tennessee, USA;20 Nov 1915 - 30 Sep 1920)
         ├─Teddy Wilburn Trewhitt
(26 Oct 1905 Bradley County, Tennessee, USA - 15 Apr 1946 Cleveland, Bradley County, Tennessee, USA)
         │ Fannie Leatherwood
(Abt 1908 Tennessee, USA - ??)
         ├─Chester Trewhitt
(26 Aug 1908 Bradley County, Tennessee, USA - 6 Nov 1962 Cleveland, Bradley County, Tennessee, USA)
         │ Marguerite (Margaret) Miller
(Cleveland, Bradley County, Tennessee, USA;25 May 1904 - 21 Aug 1980)
         │          ├─Marguerite Jayne Trewhitt
(22 May 1932 Bradley County, Tennessee, USA - 21 Sep 2000 Cleveland, Bradley County, Tennessee, USA)
         │          │ + Living
         ├─Nannie M Trewhitt
(22 Jan 1899 Bradley County, Tennessee, USA - 3 May 1983 Cleveland, Bradley County, Tennessee, USA)
         ├─Clarence Trewhitt
(18 Dec 1907 Bradley County, Tennessee, USA - 29 Aug 1927 Cleveland, Bradley County, Tennessee, USA)
         ├─Ruby Lea Trewhitt
(21 Jul 1911 Bradley County, Tennessee, USA - Feb 1981 Cleveland, Bradley County, Tennessee, USA)
         │ Ira David "Doc" Snyder
(1 Sep 1897 Tennessee, USA - Feb 1977 Cleveland, Bradley County, Tennessee, USA)
         └─Clyde Trewhitt
(18 Aug 1922 Cleveland, Bradley County, Tennessee, USA - 7 Jun 1963 bur.Cleveland, Bradley County, Tennessee, USA)