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":
Johann Gebhard
(Abt 1831 Prussia - 6 Aug 1915 New Ulm, Brown County, Minnesota, USA)
:         ├─Gabriel Gebhard
(1864 - 12 Mar 1923 bur.New Ulm, Brown County, Minnesota, USA)
:         │ Paulina ??
(1874 - 12 Mar 1948 bur.New Ulm, Brown County, Minnesota, USA)
:         │          ├─Ralph E H Gebhard
(10 Oct 1910 - 15 May 1969 bur.Minneapolis, Hennepin County, Minnesota, USA)
:         │          ├─Olida E Gebhard
(7 Jun 1899 Minnesota, USA - 6 Jan 1985 Ramsey County, Minnesota, USA)
:         │          ├─Wesley E Gebhard
(18 Aug 1903 - 26 May 1963 bur.Toledo, Lucas County, Ohio, USA)
:         │          └─Edward W Gebhard
(23 Oct 1905 - 5 Nov 1974 Chicago, Cook County, Illinois, USA)
:         ├─Katherina Gebhard
(27 Oct 1869 Germany - 2 Apr 1918 St Peter, Nicollet County, Minnesota, USA)
:         │ Herman Durbahn
(7 Mar 1870 Nicollet County, Minnesota, USA - 14 Nov 1957 New Ulm, Brown County, Minnesota, USA)
:         │ :         └─Edna Durbahn
(20 Jun 1904 Nicollet County, Minnesota, USA - 19 Aug 1957 New Ulm, Brown County, Minnesota, USA)
:         │ +
:         └─Marie Eizabeth Gebhard
(16 Feb 1861 Germany - 28 Oct 1904 Rochester, Olmsted County, Minnesota, USA)
:          Henry Durbahn
(7 Jul 1862 Nicollet County, Minnesota, USA - 15 Jun 1945 New Ulm, Brown County, Minnesota, USA)
:                   ├─Walter Erwin Durbahn
(22 Jun 1894 Nicollet County, Minnesota, USA - Feb 1981 Highwood, Lake County, Illinois, USA)
:                   ├─Edwin Arthur Durbahn
(1 May 1887 Lafayette, Nicollet County, Minnesota, USA - 22 Oct 1960 New Ulm, Brown County, Minnesota, USA)
:                   │ Bertha B Lieb
(29 May 1888 Brown County, Minnesota, USA - 6 Feb 1978 Minneapolis, Hennepin County, Minnesota, USA)
:                   │          └─Bernice Maurine Eva Durbahn
(9 Apr 1919 Brown County, Minnesota, USA - :                   │           31 Dec 2017 Bloomington, Hennepin County, Minnesota, USA)
:                   │           Milo Gerald Richmond
(29 Jan 1916 Palacios, Matagorda County, Texas, USA - :                   │           9 Aug 1981 St Paul, Ramsey County, Minnesota, USA)
:                   │                    │ Living
:                   │                    │ Living
:                   │                     + Living
:                   └─Adeline Durbahn
(5 Jun 1889 New Ulm, Brown County, Minnesota, USA - 21 Apr 1979)
Elisabetha Ney
(11 Dec 1839 Germany - 12 Mar 1912 New Ulm, Brown County, Minnesota, USA)
         └─Elisabeth (Lizzie) Gebhard
(20 Apr 1875 Germany - 17 Feb 1918 Ohio, USA)