How do I change the order of the PDFs?

Use the up and down buttons in the “Merge order” list. Check the order once before you merge.

How many PDFs can I merge?

You can merge as soon as you have 2 or more. How many works depends on the file sizes, your browser and your device.

They stay as they are. The merged PDF is made as a new file.

Click the remove button next to that file. With fewer than 2 PDFs in the list you cannot merge, so add another.

Merge PDF

Combine several PDFs into one, in the order you choose. Your files stay on your device.

PDF

Joins several PDFs, in order, into one PDF. The page order follows the order of the file list.

Drop the first PDF onto the screen, or click to choose it. This file goes at the top of the list.
Click “Add PDFs” to add the PDFs to merge. You need at least 2 to merge.
In the “Merge order” list, use the up and down buttons to change the order. You can remove files you do not need from the list.
Click “Merge”.
Click “Save” to save it. The file name is the first PDF’s name with “-merged” added.

The list shows the page count and size of each file. The screen also shows how many pages the merged file will have in all.
The pages of each PDF are joined as they are. Pages of different sizes are not changed.
A PDF that is password-protected or damaged cannot be opened. Remove such files from the list and merge again.
Files are processed in your browser and are not uploaded to a server.
Click “Keep going” to pass the merged PDF straight on to another tool and keep working.

How do I change the order of the PDFs?: Use the up and down buttons in the “Merge order” list. Check the order once before you merge.
How many PDFs can I merge?: You can merge as soon as you have 2 or more. How many works depends on the file sizes, your browser and your device.
What happens to my original PDFs?: They stay as they are. The merged PDF is made as a new file.
How do I remove a file I added by mistake?: Click the remove button next to that file. With fewer than 2 PDFs in the list you cannot merge, so add another.