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: Johannes Croes (chr.Thu 14 Oct 1779 Elburg (NL) - Thu 29 Sep 1859 Rotterdam (NL))
Mother: Anna Maria Anders (chr.Wed 14 May 1777 Zwolle (NL) - Fri 22 Jul 1853 Rotterdam (NL))
Hendrik Croes
(Fri 16 Sep 1808 's Gravenhage (NL) - Fri 5 Jan 1849 Rotterdam (NL))
Marie Claire Dumas (Tue 12 Apr 1808 Rotterdam (NL) - ??)(m. Wed 31 May 1837 Rotterdam (NL))
   ├─Anna Maria Croes (Rotterdam (NL);Sun 22 Oct 1837 - Wed 26 Feb 1908)
   │ + Cornelis Struijk (Tue 24 Jun 1845 Rotterdam (NL) - Fri 4 Jun 1926 Poortugaal (NL))
   │ (m. Wed 14 Aug 1867 Rotterdam (NL))
   ├─Neeltje Croes (Rotterdam (NL);Fri 28 Feb 1840 - Sat 16 Jan 1886)
   │ + Dirk Palli (Sat 13 Apr 1839 Rotterdam (NL) - Fri 10 Feb 1882 Utrecht (NL))
   │ : (m. Wed 23 Dec 1863 Rotterdam (NL))
   │ + Adolf van Rooyen (Rotterdam (NL);Thu 14 Mar 1839 - Sun 28 Sep 1902)
   │ (m. Wed 28 Feb 1883 Rotterdam (NL))