How do I make sure the files combine in the correct order?

When you are in the 'Combine Files' window, you will see small pictures of your files. Drag these small pictures (thumbnails) up or down to change their order. The first file at the top will be the first page in your new PDF, and so on.

What is the 'Preserve Bookmarks' option when combining PDFs?

The 'Preserve Bookmarks' option helps you navigate your new combined PDF. When it is on, each original file you added becomes a main bookmark in the final PDF. This means you can quickly jump to the start of each original document within the new single PDF, making it easy to find different sections.

If my combined PDF is very large, can I make the file size smaller?

Yes, combining files usually does not make the file size smaller. After you combine your files, you can use Acrobat's 'Optimize PDF' or 'Compress PDF' feature. This tool helps reduce the file size without losing too much quality. It is a good step to take if you need to email the PDF or upload it to a website with file size limits.

Why did my combined PDF only show the first file many times?

This is a known issue with the Combine Files feature. It can happen if the original files have internal problems or old structures. To fix this, try saving each source file again using 'Save As' before combining them. This refreshes their internal structure. Also, adding files one by one instead of all at once can help prevent this problem.

What is the difference between combining files and merging pages?

Feature What it does Best for. Combine Files Puts entire separate documents (like a Word file, an Excel file, and a PDF) into one new PDF. Creating a single packet from many different document types. Merge Pages (Insert Pages) Adds pages from one PDF into an existing PDF at a specific spot. Adding a few pages to an already existing PDF document.

◆ Acrobat · combine

Combine digitally signed PDFs

Over the last [audits=8] my team spends two days fixing inconsistent packet structure and missing signatures. Show me …

3ready prompts

1real task

3roles

See the prompt↓More combine workflows

When to use it

real situations

You need to send several signed contracts together in one file.
Your teacher asks for all signed permission slips in a single PDF.
You want to keep all signed invoices together for easy sharing.

AI prompts

3 ways to ask · copy any one

AExecute — “help me do it”Combine these digitally signed PDFs into one file: [list files]…+

Combine these digitally signed PDF files into one single PDF: [list the files here]

when the reply comes backDo you want to add a password to your combined PDF?

BImprove — “do it better”Combine my signed PDFs and make sure all signatures are still valid.…+

Combine my digitally signed PDFs and make sure all the digital signatures are still valid and visible in the new file.

when the reply comes backWould you like to check if the signatures are still valid after combining?

CDecide — “help me choose”Should I use Acrobat or another tool to combine signed PDFs?…+

Should I use Adobe Acrobat or another tool to combine my digitally signed PDFs while keeping the signatures safe? Please explain the best option for me.

when the reply comes backNeed help sending your combined PDF by email?

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

Digitally signed PDFA PDF file that has an electronic signature to prove it's real.ExampleThe digitally signed PDF of the contract assured both parties of its origin and integrity.

CombineTo put two or more files together into one file.ExampleYou gather a report, a spreadsheet, and a presentation into one single document.

Adobe AcrobatA program used to view and edit PDF files.ExampleYou use Adobe Acrobat to open and read the instruction manual.

Who does this

3 roles

Administrative AssistantLegal SecretaryProject Manager

FAQ

about this task

In Adobe Acrobat, you can use the 'Combine Files' tool to put your signed PDFs together. However, sometimes combining signed PDFs can make the signatures invalid, so always check the signatures after combining.

When you combine digitally signed PDFs, the original signatures may become invalid because the file content changes. It's important to check if the signatures are still valid in the new file.

A student might need to combine signed permission slips, forms, or assignments into one PDF to make it easier to submit or share with a teacher or school.

Yes, combining signed PDFs is different because digital signatures are sensitive to changes. When you combine them, the signatures might not work anymore, unlike regular PDFs which combine easily.

Some free tools can combine PDFs, but they may not handle digital signatures correctly. Adobe Acrobat is more reliable for keeping signatures safe, but always check the result no matter which tool you use.

Combine digitally signed PDFs

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