Opencart

Offer one-in-all checkout solution for your customers. PayPal Checkout lets you offer PayPal, Venmo (US only), Pay Later options and more — all designed to help you maximize conversion. PayPal offers short-term, interest-free payments and other special financing options that buyers can use to buy now and pay later. You get paid up-front, and there are no additional costs. Pay Later messaging includes Pay in 3, which UK buyers can use to pay for purchases of £30 to £2,000 in three, interest-free payments.

Prerequisites

Download the free PayPal Checkout Extenstion

For versions 4.0.0.0 and higher:

• Go to "Payments" section of Extension
• Find PayPal Checkout Integration as recommended option
• Download and Install the module

For versions 3.0.3.8 and higher:

• PayPal Commerce Platform is already available on the list of payment options and doesn't need to be installed manually.

For versions lower than 3.0.3.8:

• Downlaod the latest PayPal Commerce Platform module from the OpenCart Marketplace.
• Log in to the OpenCart admin panel. Select "Extensions > Installer". Upload the zip file with the payment module under "Upload your extensions".
• Go to "Extensions > Payments > PayPal Commerce Platform". Select the green button with the plus icon to Install.
• Select "Edit" to set up payment methods.