How to change picture in PPSC exam in Pakistan?

PPSC stands for public service commission full main task is to you work for the management of Punjab and to to recruit the civil services for the provincial level and they conduct a test through which they choose the new people for new jobs so if you have applied for the PPSC test and you have feel your farm and you choose the wrong image and now you want to change it then you can go to their website and can edit your application form and choose an image.