Legacy ImageMagick Discussions Archive

I'm using convert to transform multiple PNG images to JPG and would like to set some memory limits for this process:
But using -limit option doesn't help. Convert starts to consume memory very fast and total memory consumption exceeds 2GB. How can I avoid this?

I'm using ImageMagick-6.5.4.7-7 on Centos 6.

"convert" reads all the images into memory before processing them. It does this because it is designed for operations that combine images in various ways. As your processing operates in each image independently, you can use "mogrify", or put "convert" into a shell "for" loop to process only one file at a time.