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":
Mary Louisiana Morris
(27 Aug 1834 Alabama, USA - 20 Dec 1898 Shelby County, Texas, USA)
Levi Marion Truitt
(7 Jul 1827 North Carolina, USA - 25 Sep 1905 bur.Shelby County, Texas, USA)
         ├─John McCulloh Truitt
(Shelby County, Texas, USA;1 Apr 1868 - 24 Jan 1871)
         ├─Mary Caroline Truitt
(21 Oct 1861 Joaquin, Shelby County, Texas, USA - 6 Oct 1912 bur.Joaquin, Shelby County, Texas, USA)
         │ + Ransom Sholar
(Shelby County, Texas, USA;29 Nov 1862 - 9 Aug 1947)
         ├─Levi Marion Truitt, Jr
(Abt 1864 Joaquin, Shelby County, Texas, USA - 21 May 1951 Abilene, Taylor County, Texas, USA)
         │ + Betheny Ellen VanZandt
(21 Sep 1868 Cherokee County, Texas, USA - 8 May 1942 Abilene, Taylor County, Texas, USA)
         ├─James E Truitt
(Jul 1866 Shelby County, Texas, USA - 5 Apr 1913 Stiolar, Shelby County, Texas, USA)
         │ + Mary Anne Scott
(12 Feb 1870 Henry County, Alabama, USA - ?? bur.Joaquin, Shelby County, Texas, USA)
         ├─Dora Truitt
(29 Sep 1870 Joaquin, Shelby County, Texas, USA - 22 Jul 1956 Shreveport, Caddo County, Louisiana, USA)
         │ + Julius Andrew Moses Porter
(17 Feb 1866 Shelby County, Texas, USA - 21 Dec 1923 Shreveport, Caddo County, Louisiana, USA)
         ├─Cynthia Lula Truitt
(Joaquin, Shelby County, Texas, USA;14 Jan 1876 - 21 Nov 1964)
         │ + Elam Wesley Cockrell
(23 Apr 1866 Panola County, Texas, USA - 22 Apr 1951 Joaquin, Shelby County, Texas, USA)
         ├─Robert F Truitt
(15 Feb 1878 Joaquin, Shelby County, Texas, USA - 11 Mar 1904 bur.Joaquin, Shelby County, Texas, USA)
         ├─Susan Truitt
(15 Jan 1853 Shelby County, Texas, USA - 27 Feb 1924 bur.Joaquin, Shelby County, Texas, USA)
         │ + James Madison Whiddon
(13 Nov 1852 Alabama, USA - 18 Jun 1915 bur.Joaquin, Shelby County, Texas, USA)
         ├─Elizabeth (Bettie) Truitt
(Feb 1853 Shelby County, Texas, USA - 5 Jul 1930 Union County, New Mexico, USA)
         │ + James Milton Burrow
(18 Dec 1848 Decatur County, Tennessee, USA - 29 Jan 1928 Warren, Jackson County, Oklahoma, USA)
         └─Henry Clay Truitt
(Joaquin, Shelby County, Texas, USA;11 Nov 1858 - 6 Jul 1940)
          + Emma Jane Scott
(6 Jul 1862 Texas, USA - 28 Sep 1900 bur.Joaquin, Shelby County, Texas, USA)