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 Victoria Brown
(2 Aug 1862 Tennessee, USA - 16 May 1900 Springtown, Parker County, Texas, USA)
         ├─James William (Bill Tode) Hutcheson
(22 Aug 1879 Texas, USA - 2 Dec 1958 Azle, Tarrant County, Texas, USA)
         │ + Della Lindsay
(7 Feb 1879 Texas, USA - 27 Dec 1961 Springtown, Parker County, Texas, USA)
         ├─Oscar Eugene W Hutcheson
(29 Jun 1881 Parker County, Texas, USA - 6 Jan 1974 Littlefield, Lamb County, Texas, USA)
         │ Ruby Mattie Hall
(15 Feb 1889 Texas, USA - 8 Nov 1973 Lamb County, Texas, USA)
         │          ├─Leroy Holt Hutcheson
(19 Oct 1907 Scurry, Kaufman County, Texas, USA - 19 Jul 1966 Amarillo, Potter County, Texas, USA)
         │          ├─May Hutcheson
(Abt 1910 Parker County, Texas, USA - ??)
         │          ├─Fate Hutcheson
(1 Jan 1915 Parker County, Texas, USA - 30 Apr 1976 Dallas, Dallas County, Texas, USA)
         │          │ + Ima Jean Mead
(10 Feb 1920 Collin County, Texas, USA - 21 Dec 1982 Lubbock, Lubbock County, Texas, USA)
         │          ├─Jack Hutcheson
(Abt 1917 Parker County, Texas, USA - ??)
         │          └─Billy Brown Hutcheson
(16 Dec 1920 Springtown, Parker County, Texas, USA - 6 Apr 1956 Pampa, Gray County, Texas, USA)
         ├─Edna Mae Hutcheson
(1883 - ??)
         ├─Burette Lee Hutcheson
(16 Jun 1886 Weatherford, Parker County, Texas, USA - 25 Jun 1958 Terrell, Kaufman County, Texas, USA)
         │ Dannie Lea Sandlin
(8 Dec 1888 Alabama, USA - 16 Feb 1973 Fort Worth, Tarrant County, Texas, USA)
         │          ├─Charley L Hutcheson
(7 Apr 1913 Texas, USA - 13 Oct 1979 Bonham, Fannin County, Texas, USA)
         │          ├─Maurice Hutcheson
(Abt 1920 Texas, USA - ??)
         │          ├─Royce Raymon Hutcheson
(15 May 1921 Springtown, Parker County, Texas, USA - 17 Jul 2001 Dallas, Dallas County, Texas, USA)
         │          │ + Living
         │          │ + Living
         │          ├─Clyde Earl Hutcheson
(25 May 1927 Springtown, Parker County, Texas, USA - 4 Dec 1993 Dallas, Dallas County, Texas, USA)
         │          ├─Billie Ray Hutcheson
(11 Nov 1929 Springtown, Parker County, Texas, USA - 7 Jan 2007 Gretna, Jefferson County, Louisiana, USA)
         │          └─Una Lee Hutcheson
(4 Dec 1910 Texas, USA - 11 Mar 2002 Fort Worth, Tarrant County, Texas, USA)
         │           + Bud Dunagan
(21 Nov 1901 Texas, USA - 11 Feb 1955 Fort Worth, Tarrant County, Texas, USA)
         │           + Mr Whitt
(Est 1900 - ?? Fort Worth, Tarrant County, Texas, USA)
         ├─Geneva Snow Hutcheson
(21 Mar 1888 Texas, USA - 15 Oct 1930 Avoca, Jones County, Texas, USA)
         │ + Thomas Jefferson Hammer
(26 Oct 1885 Center, Shelby County, Texas, USA - 19 Feb 1971 Stamford, Jones County, Texas, USA)
         └─Ruby Harriatt Hutcheson
(21 Feb 1891 Weatherford, Parker County, Texas, USA - 12 Feb 1978 Baytown, Harris County, Texas, USA)
          + James Edman Guerry
(11 Apr 1889 Parker County, Texas, USA - 28 Oct 1965 Fort Worth, Tarrant County, Texas, USA)