PDF file is inserted on the replacement page.

There is also the problem of merging two PDF files, just like playing cards. We can learn from this idea.

That is, first extract your first document from each page, and then copy your second document into more than 2000 documents, because it is a single page. Then extract the first file and name it as an odd sequence of 13579, then name more than 2000 copies of the second file as an even sequence of 2468, then put them into a folder and merge them into a folder.

Bat batch file is the batch name of the file, which is very easy to realize, but you copy the second file into more than 2000 copies. I wonder if there is any quick way.