What is the seal that the publishing house said?

It should be printed. Print refers to the number of fully opened sheets of paper needed to print a book. The fully opened paper is divided into type A (format 850× 1 168) and type B (format 787× 1092), and the format refers to the size of the paper in millimeters. The whole paper has two printing faces, namely the front and the back. Specify that one printing surface of the whole paper is a printed page. After a whole piece of paper is printed on both sides, there are two. Format indicates the page size. For example, after a whole piece of paper is folded in half for four times, the format is116, so the format size is called16 format. 50% off is called 32 folio. The same size, different specifications of paper, folio size is also different. Generally, 787mm× 1092mm paper is called small size, 850mm× 1 168mm paper is called large size, and 880mm× 1230mm paper is called super size. Every side of a book is a page number. For example, if a book in 32 format has 320 page numbers, then its print number = 320/32 = 10.