Adobe Acrobat - Combine or Split Existing PDF Documents
Information and a link to Adobe Support about how to merge, split, and organize existing documents by arranging, extracting, inserting, rotating, and replacing pages.
Acrobat provides time-saving tools that allow you to merge or split documents to deliver information to your teammates or clients in the best way possible. Batch processing options give you the control to not only organize your documents but to share them with a professional file structure within minutes.
See the link from Adobe Support below about how to use this feature in Adobe Acrobat:
Need more help with Adobe Acrobat? Then check out the support website at https://helpx.adobe.com/support/acrobat.html.