Imagemagick's mogrify can't render text

Question

I'm trying a simple

mogrify test.png  -annotate +100+100 '26082015' 

on a simple image, and no text is rendered.

I also tried:

mogrify test.png -font courier -fill black -pointsize 20  -annotate +100+100 "26082015"

and

mogrify test.png -gravity NorthEast -draw "text 42,80 '26082015'"

What am I doing wrong ?

Answer 1

To render a text with mogrify use it like this:

mogrify [options] input-file

Taking one of your examples:

mogrify -annotate +100+100 '26082015' test.png

Per the manual the last argument on the command line is the file that needs to be processed. So, first you specify options and after that filename.