Replace Pages
The Replace Pages tool replaces specified pages of input documents with pages from existing documents:
Figure 1. Replace Pages Tool Actions Sequence
The Replace Pages tool uses five tool actions:
1. 
Choose Input Files - the tool prompts for source documents.
2. 
Replace Pages - specified document pages are replaced with pages from existing documents.
3. 
Change Document Properties (skipped by default) - the document properties are changed.
4. 
Save Documents - the updated documents are saved.
5. 
Show Files - the new documents are displayed in their destination folder.
Click actions to view customizable parameters. Additionally, please note that the Clone Tool feature can be used to clone this tool and then add/remove actions from the Tool Actions Sequence.
Information about the Batch Processing Mode, Do Not Ask for Passwords and Multi-Threaded Processing check boxes is available here.