It is very easy to change logo in prestashop e-commmerce framework. Prestashop Back Office have it own configure where you can upload logo for you online store. Let see how we can change logo in prestashop step by step.
1. Log in prestashop backoffice.
2. Click on Preference > Themes
3. Here you can upload logo on “Header Logo” section.
You can customize for mobile logo, Invoice Logo, favion and store icon. Image format may be different according the the subject. Normally prestashop convert every image format into jpg. So if you want to put png file format . You need to configure image for accepting png file format. For this you need to click on Preference > images . Here you will see three option for Image quality. You need to choose second option “Use PNG only if the base image is in PNG format” and click on save button and go on uploading png file format logo. So that you will get png file format logo in front office