I try to convert pdf file to png image in ImageMagick from windows 10 command line as follows:
convert a.pdf a.png
But I get error: Invalid Parameter - a.png. I'd like to know why. ImageMagick has been installed correctly as magick wizard.jpg win: popup an image.
convert might be another command on Windows (see convert issue)
Note also that starting from version 7
The "magick" command is the new primary command of the Shell API, replacing the old "convert" command.
(from https://imagemagick.org/script/porting.php)
so you should use:
magick a.pdf a.png