Using convert or mogrify to merge multiple PNG files into a single multi-page TIFF file

Question

Say I have a folder foo with multiple PNG files. Is there a way to use convert or mogrify to merge the PNG files into a single TIFF file?

I have tried:

mogrify -format tiff -adjoin *.png

but I get unrecognized option -adjoin

Answer 1

Using Version: ImageMagick 6.6.1-5 2010-04-23 Q16, this works just fine:

convert *.png all.tiff 

Answer 2

To merge them into a single file as an image sequence you can use the answer given by Matthias Osidio.

-append creates a single image where the images in the original set are stacked top-to-bottom.

mogrify -append *.png output.tiff