OCR Pages Other than the First 3 Pages

We have been using the free OCR API and really enjoy it. We probably do a few hundred OCR’s a month ( small volume).
Some of the pdf documents we have are more than 3 pages but the free ocr API is just scanning the first 3 pages. Is there an API parameter that would let me select pages other then the first 3 pages?

Thank you,

Hi, I know that you have meanwhile subscribed to the PRO PDF plan, thanks for that!

So this answer is for the benefit of others reading the post: The free ocr plan always OCR’s the first 3 pages of the PDF, any page after that is ignored.