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":
Jeptha Gilbert Barger
(26 Aug 1854 Tennessee, USA - 1960 Celeste, Hunt County, Texas, USA)
Mary A Price
(Mar 1860 White County, Tennessee, USA - 1932 Hunt County, Texas, USA)
         ├─Otto Barger
(31 Aug 1894 Texas, USA - 19 Mar 1983 Grandview, Johnson County, Texas, USA)
         │ Jewel Ivy Lytle
(18 Mar 1902 Cowskin, Collin County, Texas, USA - 9 Feb 1993 Grandview, Johnson County, Texas, USA)
         │          ├─Pauline Anna Jewel Barger
(17 Jul 1920 Quinlan, Hunt County, Texas, USA - 7 Sep 2006 Fort Worth, Tarrant County, Texas, USA)
         │          ├─Letta Barger
(Abt 1922 Hunt County, Texas, USA - ??)
         ├─Orrie Leona Barger
(16 Mar 1892 Wolfe City, Hunt County, Texas, USA - 28 Dec 1971 Dallas, Dallas County, Texas, USA)
         │ + Felix Tatom Mulkey
(8 May 1885 Celeste, Hunt County, Texas, USA - 23 Aug 1961 bur.Celeste, Hunt County, Texas, USA)
         │ + Albus Sanders Ramsey
(7 Mar 1870 Tennessee, USA - 4 Aug 1952 Hunt County, Texas, USA)
         ├─Mary E Barger
(Nov 1882 Texas, USA - ??)
         ├─Paralee Barger
(25 Jul 1896 Texas, USA - 19 Jun 1982 Lewisville, Denton County, Texas, USA)
         │ + William Henry Burns
(10 Oct 1894 Potosi, Taylor County, Texas, USA - Aug 1985 Dallas, Dallas County, Texas, USA)
         ├─Walter Vernon Barger
(6 Nov 1885 Whitewright, Grayson County, Texas, USA - 2 Jan 1954 Norman, Cleveland County, Oklahoma, USA)
         │ Myrtle B Mulkey
(20 May 1893 Hunt County, Texas, USA - 28 Oct 1968 Norman, Cleveland County, Oklahoma, USA)
         │          ├─Audrey Barger
(Abt 1914 Texas, USA - ??)
         │          └─Ellen Janet Barger
(22 Jun 1920 Alden, Caddo County, Oklahoma, USA - 10 Sep 2002 Oklahoma City, Oklahoma County, Oklahoma, USA)
         ├─Charles Reeves Barger
(24 Aug 1884 Texas, USA - 8 Jun 1955 Galveston, Galveston County, Texas, USA)
         │ Lizzie Bell Morgan
(13 Jan 1884 Wills Point, Van Zandt County, Texas, USA - 28 Sep 1968 Texas City, Galveston County, Texas, USA)
         │          ├─Raymond B Barger
(8 Apr 1915 Greenville, Hunt County, Texas, USA - 2 Sep 1999 Ben Wheeler, Van Zandt County, Texas, USA)
         │          ├─Earnest Barger
(1918 Oklahoma, USA - ??)
         │          ├─Mildred Inez Barger
(1 May 1919 Oklahoma, USA - 3 Nov 1986 Galveston County, Texas, USA)
         │          │ + Landon McKee Kelsey, Jr
(3 Jul 1916 Galveston, Galveston County, Texas, USA - Aug 1986 La Marque, Galveston County, Texas, USA)
         │          ├─Warren Marshall Barger
(7 Aug 1905 Texas, USA - 16 Apr 1947 Texas City, Galveston County, Texas, USA)
         │          ├─Vera Barger
(1908 Dallas, Dallas County, Texas, USA - ??)
         │          ├─Richard Maple Barger
(12 May 1909 Oklahoma, USA - 7 Jan 1995 Van Zandt County, Texas, USA)
         │          ├─Willie B Barger
(5 Jul 1911 Erick, Beckham County, Oklahoma, USA - 3 Dec 1965 Houston, Harris County, Texas, USA)
         │          └─Corene Josephine Barger
(19 Apr 1913 Oklahoma, USA - 15 Dec 2004 Alvin, Brazoria County, Texas, USA)
         ├─Willie B Barger
(Nov 1888 Texas, USA - ??)
         └─George Dibrell Barger
(17 Aug 1887 Blue Ridge, Collin County, Texas, USA - 23 Oct 1958 Dallas, Dallas County, Texas, USA)