How do I combine PDF files in Adobe Acrobat?

Open Acrobat and click 'Combine Files'. Add the files you want to combine. Arrange the files by dragging their thumbnails. Click 'Combine' to create your new PDF. Save the combined PDF.

What is the difference between combining files and inserting pages into a PDF?

Feature Description Use Case. Combine Files Creates a new PDF from multiple separate files (e.g., Word, Excel, existing PDFs). To assemble a new document from many different sources. Insert Pages Adds pages from another PDF into an already open PDF document. To add pages to an existing report or document at a specific point.

Assemble Signed Files in Adobe Acrobat — How-to & AI prompts

AI prompts

2 ways to ask · copy any one

AExecute — “help me do it”Create one auditable PDF that contains every signed engagement for [client=Westfield] this year…+

Create one auditable PDF that contains every signed engagement for [client=Westfield] this year and save the completed file to our compliance SharePoint folder with tracking info included.

when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

BImprove — “do it better”Assemble [client=Westfield]'s signed engagements into a single audit file, add an index page…+

Assemble [client=Westfield]'s signed engagements into a single audit file, add an index page with signer names, dates, and agreement IDs, embed signature validation evidence, and save the package to the compliance SharePoint folder with version control so the compliance officer can review without chasing originals.

when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

How to do it

the tool · the steps · what to avoid

1
Open Adobe Acrobat.
2
Go to the File menu and select Combine Files.
3
In the Combine Files window, click Add Files and select the files you want to merge.
4
Arrange the files in the desired order by dragging them within the list.
5
Click Combine to merge the selected files into a single PDF.
6
Save the new merged PDF by going to the File menu and selecting Save or Save As.

In the appWith the API

You can drag and drop files directly into the Combine Files window to add them quickly.

This runs in the Acrobat app - there is no separate API for this task.

Glossary

words on this page

Combine FilesAn Acrobat feature that puts multiple documents or images into a single PDF.ExampleYou use this Acrobat feature to gather several reports and images into one PDF.

ThumbnailA small picture that shows what a page or file looks like.ExampleClicking on the thumbnail of page 5 quickly displays the full content of that page.

BookmarkA link in a PDF that helps you jump to a specific part of the document.ExampleClicking the 'Exhibit A' bookmark takes you directly to the relevant court document.

Who does this

3 roles

Administrative AssistantLegal SecretaryProject Manager

FAQ

about this task

Open Acrobat and click 'Combine Files'.
Add the files you want to combine.
Arrange the files by dragging their thumbnails.
Click 'Combine' to create your new PDF.
Save the combined PDF.

Preserving bookmarks when combining files helps you navigate the new PDF easily. Each original file becomes a top-level bookmark. This means you can quickly jump to any part of your combined document, making it much easier to review or share.

If your original documents had their own page numbers, combining them will often result in page numbers that restart with each new document. To fix this, you need to add continuous page numbers to the combined PDF after you merge it. Acrobat has a 'Header & Footer' tool that allows you to add new, continuous page numbering across the entire document.

Combining files rarely makes the PDF smaller because it mostly just puts the existing data together. It does not automatically compress or optimize the files during the merge process. If you want a smaller file size, you should compress the PDF after you have combined all your documents into one.

Feature	Description	Use Case
Combine Files	Creates a new PDF from multiple separate files (e.g., Word, Excel, existing PDFs).	To assemble a new document from many different sources.
Insert Pages	Adds pages from another PDF into an already open PDF document.	To add pages to an existing report or document at a specific point.

Assemble Signed Files

When to use it

AI prompts

How to do it

Glossary

The real tasks

Who does this

FAQ

Sources

Adobe help

Video

Other guides

When it fails