The easiest way to get the page count up to where it needs to be is by adding the blank pages. However, this would be a wasted opportunity to add more valuable content to help the reader connect with the brand, company, or products. Instead, pages can be filled with information about the company, like a mission statement, company profile, or details about its core values like sustainability, fair trade, local sourcing, etc. Individual products can also be "profiled" to highlight features or attributes that align with the customer's values, for example, organic and cruelty-free skincare and cosmetics. Suppose some of the proceeds from a product or collection will benefit a cause or a charity. In that case, a description of the charity or cause can help readers connect and want to help support it by purchasing the product(s). These types of pages are useful for interspersing throughout the catalog, wherever an extra page is needed. This way, you can ensure that a new section starts where it should or that a 2-page spread will be on two pages next to each other.
On a more prosaic level, you can fill extra pages with customer service information like return policies, support contact information, warranty details, and service and repair information, among others. These pages are best placed near the end of the catalog, and can bring up the page count without affecting the page order. If, after creating all of the other pages and ensuring that everything is in the right place, you realize that 2 more pages are needed, they can be added at the end and filled with practical or technical details.