Thanks Clivel. Yes, it makes sense.
I searched for a way to reduce the original image, by using
ALBUM_STAMP_IMG_ASPECT_RATIO (true)
ALBUM_STAMP_IMG_NEW_SETTING_PCNT (30)
I got exactly what I want.
I played with the PAGE_VSPACE command, so now I have a final code :
ALBUM_PAGES_Size (210.0 297.0) #set the album page size to a4
ALBUM_PAGES_MARGINS (25.0 12.0 15.0 15.0) #left, right, top and bottom page margins, when A4 or letter
ALBUM_PAGES_BORDER (0.1 0.0 0.0 1.0) #single thin line border around the page
ALBUM_PAGES_SPACING (1.0 6.0) #set horizontal & vertical spacing for elements on a page
ALBUM_DEFINE_FONT(MAT "Matura MT Script Capitals")
ALBUM_DEFINE_FONT (GRN "Garamond")
ALBUM_DEFINE_FONT (YAH "Microsoft YaHei") #for japanese font
STAMP_BOXES_SIZE_ADJUST(5.0)
ALBUM_STAMP_IMG_GREYSCALE_OFF #for the town flag in colors
PAGE_START_GROUP_BEGIN
#
# Blot out the header area
#
PAGE_VSPACE(-5)
ROW_START_ES (MAT 6 0.5)
STAMP_ADD_BLANK (30 10)
STAMP_ADD_BLANK (30 10)
STAMP_ADD_BLANK (30 10)
STAMP_ADD_IMG (30 10 "White.jpg" "" "" "" NO_FRAME) #the 30 adjusted to the town name
PAGE_START_GROUP_END
# ------------------------------------------------------------------------------
# New Page: place text in the header space
# ------------------------------------------------------------------------------
PAGE_START
PAGE_VSPACE(-25)
STAMP_BORDER_STYLE(BLANK)
ROW_START_ES (MAT 16 0.5)
STAMP_ADD_BLANK (30 10)
STAMP_ADD_BLANK (30 10)
STAMP_ADD_BLANK (30 10)
STAMP_ADD (30 10 "Kenbuchi" "" "" "") # Town name, etc.
PAGE_VSPACE (-8)
PAGE_TEXT_PARAGRAPH_START (YAH 10 RIGHT 0 0 12) #postal code for the pictural cancellation
postal code in japanese, not readable in the forumPAGE_TEXT_PARAGRAPH_END
PAGE_VSPACE (-15)
ROW_START_ES (TN 15 0.5)
STAMP_ADD_IMG (23 10 "Kenbuchi.png" "" "" "" NO_Frame))#picture of the town flag
PAGE_VSPACE (-5)
PAGE_TEXT_CENTER (YAH 13 "
Town name not readable in the forum" 1)
PAGE_VSPACE (5)
PAGE_TEXT_PARAGRAPH_START (GRN 12 CENTER) #description of the aera
Kenbuchi est un bourg du district de Kamikawa (Teshio), situé dans la sous-préfecture de Kamikawa, sur l'île de Hokkaid#333;, au Japon. Au 31 mars 2015, la population de Kenbuchi s'élevait à 3.336 habitants répartis sur une superficie de 130,99 km2.\n
La ville est connue pour son musée du livre d'images et sa mascotte, l'alpalaga Pucchina.
PAGE_TEXT_PARAGRAPH_END
PAGE_VSPACE (10)
STAMP_BORDER_STYLE (CORNER)
ALBUM_STAMP_IMG_ASPECT_RATIO (true)
ALBUM_STAMP_IMG_NEW_SETTING_PCNT (30)
PAGE_COLUMN_START (70 5 1 0 5)
ROW_START_ES (TN 6 0.2)
STAMP_ADD_IMG (100 147 "Sceau.png" "" "" "") #image of the cancellation
PAGE_COLUMN_NEXT
ROW_START_ES (TN 6 0.2)
STAMP_ADD_BLANK (23 10 "" "" "" "")
PAGE_TEXT_PARAGRAPH_START (YAH 8 LEFT 5 0 0 0)#various information on the cancellation
Mise en service: \n
21 novembre 2023\n
\n
Design :\n
Mascotte de la ville (Pucchina) et Kenbuchi, ville du livre d'images.\n
\n
Créateur : \n
Mami Noguchi\n
\n
Lieux : \n
Bureau de poste de Kenbuchi\n
8-4 Nakamachi\n
Kenbuchi-cho\n
Kamikawa-gun \n
Hokkaido 098-0338\n
\n
This part in japanese, not readable in the forum PAGE_TEXT_PARAGRAPH_END
PAGE_COLUMN_STOP
And the final resut.
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The PAGE_VSPACE command need a little brain gymnastic but is verry usefull. Same goes when I need to adjust horizontal placing. Anyway, the end result is what I wanted and now I can proceed for the other towns.
Thanks for your help