You can upload your company logo directly in your company settings!
On a desktop, start by tapping on Settings from the blue main navigation menu, and head to your Company Profile section.
On petpocketbook.com on your phone, tap the burger menu in the top left corner of the screen. The left hand menu will appear and then you can tap Settings. The Settings menu is green after it expands. Tap Company profile.
Tap on the image placeholder and upload your company logo!