Compile all final as‑built documents into one certified PDF package, certify the PDF, and deliver the official project…
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.
Combining files rarely makes the file size smaller. It usually keeps the original size of all documents added together. If your combined PDF is too large, you should compress it after you finish combining. This can help reduce the file size without losing too much quality.
If your original files had their own page numbers, combining them will make those numbers restart for each section. To fix this, you need to add continuous page numbers to the entire combined PDF after the merge. This will give your final document one smooth sequence of page numbers.
| Feature | Combine Files | Merge Pages |
|---|---|---|
| Purpose | Joins multiple whole documents (like Word, Excel, PDFs) into one new PDF. | Inserts pages from one PDF into another existing PDF. |
| Input | Various file types | Only PDF pages |
| Output | A single, new PDF document | An updated existing PDF document |
Yes, you can combine specific pages. When you add PDF files to the 'Combine Files' tool, you can often choose which pages from each PDF you want to include. Look for an option to select page ranges after you add a PDF. This lets you create a new document using only the relevant sections from your source files.