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: Jan Harm Spekken
(11 Mar 1837 Odoorn, Drenthe, Nederland - 09 Dec 1918 Valthermond, Odoorn, Drenthe, Nederland)
Mother: Anna Catharina Bruining
(01 Nov 1847 Emmen, Drenthe, Nederland - 09 Jul 1884 Valthermond, Odoorn, Drenthe, Nederland)
Geert Harm Spekken
(28 May 1875 Valthermond, Odoorn, Drenthe, Nederland - 11 Mar 1950 Valthermond, Odoorn, Drenthe, Nederland)
Maria Aleida Bergmann
(28 May 1876 Odoorn, Drenthe, Nederland - 24 Dec 1903 Valthermond, Odoorn, Drenthe, Nederland)
:         └─ Anna Maria Greta Spekken
(13 Jun 1900 Valthermond, Odoorn, Drenthe, Nederland - Yes, date unknown)
+ Johanna Josephina van der Aa
(28 Jan 1880 Exloo, Odoorn, Drenthe, Nederland - : 16 Nov 1918 Valthermond, Odoorn, Drenthe, Nederland)