It is suggested to determine the size first, find a printing shop to print out the inner pages, then arrange all the papers, temporarily fix the side to be punched with glue, and then punch holes according to the hole spacing of the inner pages in the annex. After drilling the hole, cut it into finished size with a paper cutter and put it in a sealed shell.
One thing to note is that all the inner pages must be neat, coated with glue, then punched and finally cut to size. This is to make them neat and beautiful when they are finished in the future. If you do it page by page, you will end up very untidy.
A small number of advertising print shops will do.
If the quantity is large, go to the printing plant again.