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":
Father: George Henry Todd (Abt 1822 North Carolina, USA - ?? Dyersburg, Dyer County, Tennessee, USA)
Mother: Margaret Amanda Ross (12 Oct 1833 Tennessee, USA - 12 Apr 1913 Quanah, Hardeman County, Texas, USA)
         ├─Cletus F Todd
(23 Jul 1903 Wise County, Texas, USA - 9 Mar 1987 Carlsbad, Eddy County, New Mexico, USA)
         │ Georgia Kamp
(16 Feb 1907 Texas, USA - 27 Mar 1972 bur.Carlsbad, Eddy County, New Mexico, USA)
         │          ├─Bertha Louise Todd
(12 Dec 1931 Brazoria, Brazos County, Texas, USA - 16 Apr 1981 Wichita Falls, Wichita County, Texas, USA)
         ├─Ethel Ione Stanford
(22 Feb 1907 Collin County, Texas, USA - 25 Jan 1997 Texas, USA)
         │ + Joseph Oliver Stanford
(15 Mar 1907 Indiahoma, Comanche County, Oklahoma, USA - 8 Jan 1990 Texas, USA)
         ├─Lonnie Clifford Todd
(22 Oct 1910 Duke, Jackson County, Oklahoma, USA - 19 Mar 1999 Amarillo, Potter County, Texas, USA)
         │ Helen Bailey
(4 Aug 1920 Slaton, Lubbock County, Texas, USA - 11 Apr 1995 Lubbock, Lubbock County, Texas, USA)
         │          ├─Clara Mae Todd
(Lubbock, Lubbock County, Texas, USA;1 Jul 1936 - 6 Sep 2008)
         │          │ Richard Eugene (Ike) Featherston
(16 Apr 1932 Elk City, Beckham County, Oklahoma, USA -          │          │ 5 May 2007 Lubbock, Lubbock County, Texas, USA)
         │          │          ├─Richard Eugene Featherston, Jr
(Lubbock, Lubbock County, Texas, USA;24 Jan 1958 - 6 Apr 1968)
         │          ├─Sue Ella Todd
(Lubbock, Lubbock County, Texas, USA;3 May 1939 - 24 Jan 2001)
         │          ├─Wanda Carroll Todd
(Lubbock, Lubbock County, Texas, USA;11 Jan 1938 - 15 Sep 1990)
         │          │ Jackson Thomas Farmer
(20 Dec 1931 Killeen, Bell County, Texas, USA - 9 Jan 2007 Lubbock, Lubbock County, Texas, USA)
         │          │          └─Bennie Carl Farmer
(2 Aug 1954 Lubbock, Lubbock County, Texas, USA -          │          │           20 Jan 2015 bur.Sierra Vista, Cochise County, Arizona, USA)
         │          │           + Living
         │           + Living
         ├─Norvan Clarence Todd
(13 Jan 1913 Oklahoma, USA - 11 Mar 1982 Childress, Childress County, Texas, USA)
         │ + Myrtle ??
(22 Jan 1914 - 8 Feb 1994 bur.Quanah Memorial Park, Quanah, Hardeman County, Texas, USA)
         └─Lorena Todd
(30 May 1916 Altus, Jackson County, Oklahoma, USA - 29 Apr 2004 Eatonville, Pierce County, Washington, USA)
          Lowell E Holt
(11 May 1914 New Mexico, USA - 30 Jan 1967 Tacoma, Pierce County, Washington, USA)
                   └─Sharon Kay Holt
(Pierce, Tacoma County, Washington, USA;Abt 1942 - 4 Jun 1944)