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":
       └─Jacques Sondag (28 Feb 1775 Apach, Moselle, Lorraine, France -         27 Dec 1846 Kerling-lès-Sierck, Moselle, Lorraine, France)
        Anna Maria Theobald (23 Dec 1816 Schengen, Remerschen, Remich, Grevenmacher, Luxembourg - 31 Dec 1897         : Clear Creek, Keokuk County, Iowa)(m. 17 Sep 1843 Kerling-lès-Sierck, Moselle, Lorraine, France)
        :   ├─Jacques Frank Sondag (31 Oct 1843 Alsace-Lorraine Province, France -         :   │ 18 Mar 1897 Harper, Keokuk County, Iowa)
        :   │ Barbara Berg (4 Jul 1852 Clear Creek Township, Keokuk County, Iowa -         :   │ 8 Nov 1930 Keokuk County, Iowa)(m. 1869 Baden, Iowa)
        :   │    ├─Michael Sondag (25 Jun 1870 - 22 Mar 1960)
        :   │    ├─Nicholas Sondag (23 Dec 1871 Clear Creek Township, near Baden, Keokuk County, Iowa -         :   │    │ 16 Jun 1960 Harper, Keokuk County, Iowa)
        :   │    │ Magdalena Peiffer (2 Apr 1877 Clear Creek Township, Keokuk County, Iowa -         :   │    │ 10 Mar 1949 Harper, Keokuk County, Iowa)(m. 15 Feb 1898)
        :   │    │    ├─Coletta Regina Sondag (18 Jul 1899 Harper, Keokuk County, Iowa - ??)
        :   │    │    │ Charles A Webb
        :   │    │    │    └─Paul E Webb (23 Jul 1925 - 30 May 1988)
        :   │    │    │     Mary Magdalen Hammes (27 Dec 1926 - 26 Mar 2018 Keokuk County Health Center,         :   │    │    │     Sigourney, Keokuk County, Iowa)(m. 5 Sep 1946 Ss. Peter & Paul Catholic Church,         :   │    │    │     Clear Creek Township, Keokuk, County, Iowa)
        :   │    │    └─Etheldred Sondag (ca 1909 - ??)
        :   │    ├─Jacob Theodore Sondag (8 Jul 1873 Keokuk County, Iowa -         :   │    │ 4 Dec 1908 Keota, Keokuk County, Iowa)
        :   │    │ Regina Anna Peiffer (19 Jun 1878 At Home on Farm, Clear Creek Township, Keokuk County, Iowa -         :   │    │ 13 Feb 1974 At Home, Harper, Keokuk County, Iowa)(m. 15 May 1900 Ss. Peter & Paul Catholic         :   │    │ Church, Clear Creek Township, Keokuk, County, Iowa)
        :   │    │    ├─Margaret Theresa Sondag (5 Nov 1903 Harper, Keokuk County, Iowa -         :   │    │    │ 20 Feb 1988 Sigourney Care Center, Sigourney, Keokuk County, Iowa)
        :   │    │    │ Peter Richard Merz (30 Jul 1903 Near Harper, Keokuk County, Iowa - 11 Feb 1980 Harper,         :   │    │    │ Keokuk County Iowa)(m. 8 Feb 1927 St. Elizabeth Church, Harper, Keokuk County, Iowa)
        :   │    │    │    ├─Jeanette Marie Merz (13 Nov 1927 - 21 Apr 2021)
        :   │    │    │    │ Floyd Joseph Hammes (22 Feb 1927 At Home on Farm, Sigourney, Keokuk County, Iowa -         :   │    │    │    │ 21 Jan 2003 At Home, Sigourney, Keokuk County, Iowa)(m. 17 Apr 1948 St. Mary's         :   │    │    │    │ Catholic Church, Keota, Keokuk County, Iowa)
        :   │    │    │    ├─Burnita Ellen Merz (17 Jan 1929 Harper, Keokuk County, Iowa -         :   │    │    │    │ 12 Jun 2019 Wheat Ridge, Jefferson County, Colorado)
        :   │    │    │    │ Jerome Franklin Besser (4 Jan 1926 - 7 Feb 2002 bur.Denver, Colorado)
        :   │    │    │    │ Robert Dennis Leo Hammes (20 Sep 1928 At Home on Farm, Clear Creek Township,         :   │    │    │    │ Keokuk County, Iowa - 29 Jul 2017 University Hospitals, Iowa City, Johnson         :   │    │    │    │ County, Iowa)(m. 23 Feb 1952)
        :   │    │    │    │    │ Ron Mefford (11 Jun 1947 Mater Hospital, Knoxville, Iowa -         :   │    │    │    │    │ : 18 Sep 1996 Mercy Medical Center, Des Moines, Polk County, Iowa)
        :   │    │    │    ├─Rose Mary Merz (17 Oct 1934 Harper, Keokuk County, Iowa -         :   │    │    │    │ 2 Aug 2020 Sigourney, Keokuk County, Iowa)
        :   │    │    │    │ Raymond Patrick Shannon (17 Mar 1934 Sigourney, Keokuk County, Iowa - 20 Oct 2020         :   │    │    │    │ Sigourney Health Care Center, Sigourney, Keokuk County, Iowa)(m. 29 Dec 1954         :   │    │    │    │ St. Mary Church, Keota, Keokuk, Iowa, USA)
        :   │    │    │    ├─Ronald Richard Merz (Harper, Keokuk County, Iowa;22 Nov 1938 - 27 Mar 2019)
        :   │    │    │    │ Sharon Moothart (12 Aug 1939 - ??)(m. 16 Aug 1960)
        :   │    │    │     + Raymond James Pergeau (18 Jan 1936 Detroit, Michigan, USA -         :   │    │    │     : 25 May 1998 Phoenix, Arizona, USA)
        :   │    │    │     + Living
        :   │    │    ├─Marie Francis Sondag (29 Jan 1905 - ??)
        :   │    │    │ + Herbert Hering
        :   │    │    ├─Joseph Lawrence Sondag (30 Jan 1906 -         :   │    │    │ 26 Aug 1996 St. Elizabeth's Cemetery, Harper, Keokuk County, Iowa)