First of all, I apologize for delay in responding to your email and thank you very much for your interest in PayPal products to develop the website. If you would like to get payment button places at your items and payment page, Please use Express Checkout feature, details are following which is IT support needed. However, I regret to inform you that I have no idea of IT knowledge. Therefore, all questions regarding technical I will pass them all to PayPal Technical Team which is supported merchant in English if you have any. Please forward all below details to your IT Team for integration.
1.Express Checkout
To use the PayPal Express Checkout as a payment method to integrate with the site please go through the links below. I have attached the helpful quick start guide and document on how to retrieve API credentials.
Below is the sample code and links for PayPal Express Checkout.
API Solution
Please note that you are going to use only 3 API (Application programing interface) which are
1. SetExpressCheckout
2. GetExpressCheckout Details
3. DoExpressCheckout Payments.
PayPal Express Checkout API Overview & Functional Workflow:
https://www.paypalobjects.com/IntegrationCenter/ic_expresscheckout_img.html
Please download the PayPal Express Checkout NVP API Developer Guide from the following link:
https://developer.paypal.com/webapps/developer/docs/classic/express-checkout/integration-guide/ECGettingStarted/
2.PayPal logos have to place on home page and others and also please use a new logo as below link.