How do i specify the dimension of image output in python subprocess?

Question

I want to convert pdf file to image. I want to specify the output dimension for images. How do I do that?

import subprocess
#I want to pass output dimension as parameter. How do I do that 
params = ['convert','./data/in.pdf','thumnails.jpg']
subprocess.check_call(params) 

Answer 1

Although I don't really use image-magick nor its convert command-line command. But I done some researching and found out you can use the -resize parameter to resize images. You can refer back to here and here and also here for more details. To incorporate it to running from subprocess, you can do:

import subprocess
#I want to pass output dimension as parameter. How do I do that 
params = ['convert','./data/in.pdf','-resize', '100x100', 'thumnails.jpg'] # replace 100x100 with your width x height 
subprocess.check_call(params) 

Alternatively, you can try using the -density argument:

params = ['convert', '-density', '100x100', './data/in.pdf', 'thumnails.jpg'] # replace 100x100 with your width x height