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":
Josephine Norman
(16 Apr 1858 Tennessee, USA - 5 Feb 1940 bur.Dawnville, Whitfield County, Georgia, USA)
George Washington Wattenbarger
(11 Aug 1851 Greene County, Tennessee, USA - 26 Feb 1916 Dawnville, Whitfield County, Georgia, USA)
         ├─William David Wattenbarger
(25 Aug 1881 Bradley County, Tennessee, USA - 6 Jun 1954 Whitfield County, Georgia, USA)
         │ Fannie A Gladden
(24 Apr 1886 Georgia, USA - 2 Jul 1951 Murray County, Georgia, USA)
         │          ├─Charles Wallace Wattenbarger
(2 Aug 1906 Whitfield County, Georgia, USA - 27 Jul 1953 Murray County, Georgia, USA)
         │          │ Jewel Caylor
(20 May 1910 Georgia, USA - 24 Apr 1983 Whitfield County, Georgia, USA)
         │          ├─Syble Nena Wattenbarger
(30 Dec 1907 Georgia, USA - 30 Apr 2002 Crandall, Murray County, Georgia, USA)
         │          │ + Eldon B Bryant
(25 Apr 1908 Catoosa County, Georgia, USA - 8 Dec 1949 Whitfield County, Georgia, USA)
         │          ├─George William Wattenbarger
(20 Apr 1914 Cisco, Murray County, Georgia, USA -          │          │ 4 Oct 1995 bur.Crandall, Murray County, Georgia, USA)
         │          ├─Lucile Wattenbarger
(Abt 1920 Murray County, Georgia, USA - ??)
         │          ├─Osco Ishmael Wattenbarger
(25 Jan 1922 Cisco, Murray County, Georgia, USA - 19 Jan 1989 Catoosa County, Georgia, USA)
         │          └─Delia J Wattenbarger
(Whitfield County, Georgia, USA;26 Sep 1910 - 12 Feb 1995)
         │           + Olen Dycus
(13 Dec 1907 Georgia, USA - 24 Jun 1994 Whitfield County, Georgia, USA)
         ├─Mary C Wattenbarger
(26 Jan 1889 Whitfield County, Georgia, USA - ??)
         ├─Sarah Alice Wattenbarger
(19 Jun 1879 Bradley County, Tennessee, USA - 12 Oct 1896 Whitfield County, Georgia, USA)
         └─Matilda Wattenbarger
(2 Mar 1884 Georgia, USA - 26 Apr 1970 Rossville, Walker County, Georgia, USA)
          + James Madison Dunn
(26 Jul 1879 Polk County, Tennessee, USA - 23 Nov 1918)