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: Thomas Blank, Sr. ~50 years b. abt. 1831 Prussia, Germany d. 03 Apr 1881 x, Mifflin Township, Allegheny County, Pennsylvania, USA
Mother: Barbara Hess ~49 years b. abt. 1837 Baden, Germany d. 14 Mar 1886 x, Mifflin Township, Allegheny County, Pennsylvania, USA
Barbara Blank
80 years b. 28 Mar 1869 x, x, x, Pennsylvania, USA d. 12 Aug 1949 159 Schwab Avenue, Munhall, Allegheny County, Pennsylvania, USA
John Steiner 54 years b. 19 Nov 1869 x, x, x, West Virginia, USA d. 08 Sep 1924 Bellwood Street, Mifflin Township, Allegheny County, Pennsylvania, USA
         ├─George Nicholas Steiner 88 years          │ b. 07 Aug 1888 x, x, x, Pennsylvania, USA          │ d. abt. Sep 1976 (Death place unknown) ~ If available please use Suggest tab
         │ Genevieve J. Murray          │ b. abt. 1893 x, x, x, Pennsylvania, USA          │ d. ??
         │          ├─Madeline Steiner ~8 years          │          │ b. abt. 1915 x, x, x, Pennsylvania, USA          │          │ d. 1923
         ├─John Steiner          │ b. abt. Apr 1890 x, x, x, Pennsylvania, USA          │ d. ?? (Death place unknown) ~ If available please use Suggest tab
         ├─Frances Steiner 85 years          │ b. 06 Mar 1893 x, x, x, Pennsylvania, USA          │ d. abt. Sep 1978 (Death place unknown) ~ If available please use Suggest tab
         ├─Edward Steiner          │ b. 12 Jun 1896 x, x, x, Pennsylvania, USA          │ d. ?? (Death place unknown) ~ If available please use Suggest tab
         ├─William J. Steiner 79 years          │ b. 05 Aug 1898 x, x, x, Pennsylvania, USA          │ d. 23 Jul 1978 (Death place unknown) ~ If available please use Suggest tab
         │ Helen Grace O'Hara 39 years          │ b. 28 Sep 1901 Turtle Creek, PA          │ d. 29 Jan 1941 Homestead Hospital at 1800 West Street, Homestead, Allegheny County, Pennsylvania, USA
         │          ├─Grace Margaret Steiner ~75 years          │          │ b. abt. 1919 x, x, x, Pennsylvania, USA          │          │ d. abt. 1994 (Death place unknown) ~ If available please use Suggest tab
         │          │ Harry Zeiler ~72 years          │          │ b. abt. 1912 (Birth place unknown) ~ If available please use Suggest tab          │          │ d. abt. 1984 (Death place unknown) ~ If available please use Suggest tab
         │          │          └─Richard C. Zeiler ~56 years          │          │           b. abt. 1940 (Birth place unknown) ~ If available please use Suggest tab          │          │           d. abt. 1996 (Death place unknown) ~ If available please use Suggest tab
         │          ├─William Edward Steiner 1 year          │          │ b. 12 Aug 1920 x, x, x, Pennsylvania, USA          │          │ d. 26 Oct 1921 210 Bessemer Avenue, East Pittsburgh, Allegheny County, Pennsylvania, USA
         │          │ Living
         │          │          ├─Robert D. Johnston ~49 years          │          │          │ b. abt. 1947 (Birth place unknown) ~ If available please use Suggest tab          │          │          │ d. abt. 1996 (Death place unknown) ~ If available please use Suggest tab
         │          │          └─Keith Thomas Johnston ~53 years          │          │           b. abt. 1952 (Birth place unknown) ~ If available please use Suggest tab          │          │           d. abt. 2005 (Death place unknown) ~ If available please use Suggest tab
         │          └─Mary Bernadette Steiner ~53 years          │           b. abt. 1924 x, x, x, Pennsylvania, USA          │           d. abt. 1977 (Death place unknown) ~ If available please use Suggest tab
         │           + Living
         ├─Albert A. Steiner 85 years          │ b. 06 Feb 1903 x, x, x, Pennsylvania, USA          │ d. 07 Jul 1988 (Death place unknown) ~ If available please use Suggest tab
         ├─Clarence Steiner          │ b. abt. 1906 x, x, x, Pennsylvania, USA          │ d. ??