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convert -append 1.jpg 2.jpg out.jpg

This command appends 1.jpg and 2.jpg horizontally. What is the command to do this vertically?

39

For vertical stacking (top to bottom):

convert -append 1.jpg 2.jpg out.jpg

For horizontal stacking (left to right):

convert +append 1.jpg 2.jpg out.jpg
10

Use -append to stack images top-to-bottom.

Use +append to stack images left-to-right.

Source: http://imagemagick.org/script/command-line-options.php#append

1

For latest imagemagick from V7 , the following is command

magick input1.jpg input2.jpg -append out.jpg

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