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":
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┌──James Moyers
(27 Mar 1767 Culpeper County, Virginia, USA - 18 Feb 1838 White Pine, Jefferson County, Tennessee, USA)
│ └──Susannah ??
(1740 Virginia, USA - 1839 White Pine, Jefferson County, Tennessee, USA)
│
┌──John Blackburn Moyers
(30 Jan 1792 Jefferson County, Tennessee, USA - 13 Nov 1875 Warren County, Tennessee, USA)
│ │
│ │ ┌──Benjamin J Blackburn
(1713 Ireland - 1791 Washington County, Tennessee, USA)
│ │ ┌──John B Blackburn
(27 Jan 1741 Chester County, Pennsylvania, USA - 9 Feb 1808 Dandridge, Jefferson County, Tennessee, USA)
│ │ │ └──Mary ??
(1721 North Carolina, USA - 1791 Frederick County, Virginia, USA)
│ │ │
│ └──Mary (Polly) Blackburn
(14 Nov 1768 Frederick County, Virginia, USA - 1 Jan 1846 White Pine, Jefferson County, Tennessee, USA)
│ │
│ │ ┌──Alexander Mathes
(Bef 1708 Ireland - 1788 Bentonville, Warren County, Virginia, USA)
│ └──Janet Mathews
(29 Sep 1747 Warren County, Virginia, USA - 29 Sep 1818 Jefferson County, Tennessee, USA)
│ └──Grizella ??
(Est 1708 Ireland - Bentonville, Warren County, Virginia, USA)
│
Susannah Jane Myers (9 Jan 1827 Jefferson County, Tennessee, USA - 16 Sep 1908 Bledsoe County, Tennessee, USA)
│
│ ┌──John Snoddy
(1720 Scotland - Feb 1784 Washington County, Virginia, USA)
│ ┌──Albert "Thomas" Snoddy, Esq
(26 Jan 1761 Philadelphia, Philadelphia County, Pennsylvania, USA - │ │ 26 Jun 1839 Snoddyville, Jefferson County, Tennessee, USA)
│ │ └──Agnes Glasgow
(1722 Ireland - 1806 Leadvale, Jefferson County, Tennessee, USA)
│ │
└──Mary Snoddy
(15 Jul 1790 Edgecombe, Edgecombe County, North Carolina, USA - 8 Nov 1861 McMinnville, Warren County, Tennessee, USA)
│
│ ┌──John Davis
(14 Oct 1743 Virginia, USA - 1810 Abingdon, Washington County, Virginia, USA)
└──Hannah Davis
(9 Feb 1769 Allison Gap, Washington County, Virginia, USA - 18 Mar 1801 Jefferson City, Jefferson County, Tennessee, USA)
└──Mary Allison
(14 Feb 1743 Virginia, USA - 1784)