PilotPDF
Back to Tools

Merge PDF Files into One

Put your PDFs in the order you want, choose pages from each one if you like, and download a single file.

How to merge PDF files

  1. 1

    Choose your PDFs

    Pick two or more files. They open for the current task, and you can add more on the next screen.

  2. 2

    Put them in order

    Drag the files into the order you want, or sort them by name. To use only part of a file, type the pages you need next to it.

  3. 3

    Merge and download

    Name the new file, click Merge PDFs, and download it. A bookmark is added for each original file unless you turn that off.

Good times to merge PDFs

Job applications often ask for one file: your CV, cover letter and certificates together. Merging them means the recruiter opens one PDF instead of five.

The same goes for sending a quote with its terms and conditions, a report with its appendices, or scanned receipts for an expense claim. Put them in the order the reader expects and they'll thank you for it.

If you only need part of a long document, like the signed last page of a contract, type that page next to the file instead of merging the whole thing.

Keeping the merged file easy to use

Bookmarks make a big merged file much easier to find your way around. With them turned on, the PDF's sidebar lists each original file by name, and clicking one jumps straight to its first page.

Give the file a clear name before you download, like Smith application 2026, so it isn't just another merged.pdf in someone's downloads folder.

Every page keeps its size, so a mix of A4, Letter and landscape pages is fine. Links inside the original files and form fields may not work in the merged copy, so check them if they matter.

From the blog

Your files are never retained by PilotPDF

PilotPDF does not keep copies of your original files, completed files, passwords, or document contents after processing.

Read our privacy policy for details about analytics and data handling.

Related tools

Split PDF

Break a PDF back into separate files.

Compress PDF

Shrink the merged file for email.

Rearrange PDF Pages

Reorder single pages inside one PDF.

Add Page Numbers

Number the pages of your merged file.

Frequently Asked Questions

Choose two or more PDFs, drag them into the order you want, and click Merge PDFs. Then download your combined file.
Drag a file by its handle on the left, use the up and down arrows, or sort the list A to Z. The file at the top comes first in the merged PDF.
Yes. Type the pages you want in the box next to that file, like 1-3 or 2, 5. Leave it empty to use every page.
Yes. Click Add PDFs to add more. They're added to the end of the list, and you can move them from there.
Yes, if you leave Add a bookmark for each file ticked. Each file's name appears in the PDF's bookmark sidebar, so you can jump straight to it.
Yes. Every page keeps its own size and orientation, so A4, Letter and landscape pages can sit together in one file.
Up to 100 MB per PDF and 500 MB altogether. Very large files take longer, especially on phones.
Not directly. It's flagged when you add it. Remove the password with Unlock PDF, then add the unlocked copy.
Page content, images and text come through as they are. Links that jump to other pages, form fields and bookmarks inside the original files may not carry over, so check anything important.
No. The files are merged online and never retained by PilotPDF.