Combine the separate chapter drafts, image files, and footnote documents into one ordered PDF for my coauthor, organiz…
Open Adobe Acrobat.
Go to File > Combine Files.
Click Add Files and select the PDF files you want to merge.
Arrange the files in your desired order by dragging and dropping them within the list.
Click Combine to merge the selected files into a single PDF document.
Save the new combined PDF to your preferred location.
You can preview and reorder files before combining to ensure the final PDF is in the correct sequence.
This runs in the Acrobat app - there is no separate API for this task.
Keeping 'Preserve Bookmarks' on is important because it makes your new, combined PDF easy to use. Each original file will become a top-level bookmark. This means you can quickly jump to the start of each original document within the new, larger PDF. It helps you navigate the combined document without scrolling through everything.
No, combining files rarely makes the PDF smaller. Usually, the size stays about the same or even gets a little bigger. If you need a smaller file, you should compress the PDF after you have combined all your files.
You might get restarting page numbers if your original source files already had their own printed page numbers. When you combine them, Acrobat sees each file as a new start. To fix this, after combining, you can add new continuous page numbers to the whole document. This will overwrite the old, separate page numbers.