---
title: Free PDF Merger Online – Combine PDF Files in Order | HelpRange
url: https://www.helprange.com/tools/merge-pdf
---

Free tool

# Merge PDF files

Combine up to 25 PDFs into one file. They are merged in the order you select them.

[Do this for your team](https://www.helprange.com/feature-secure-documents-sharing)

## How it works

### Choose 2–20 PDFs

Up to 10 MB each and 30 MB together.

### Check the order

Files are merged in the order of the file picker – prefix the names with 01-, 02-… to control it.

### Download one PDF

All pages in one file, up to 200 pages.
  ![Three PDF files merged into one document](/static/images/ui/tools/merge-pdf.jpg)Three PDF files merged into one document

### Sending a document pack? Use a data room instead

Put all files in one HelpRange data room: guests log in with an e-mail code, sign your NDA, and you see who opened which document – with uploads and AI answers from the documents.

 [Try HelpRange free](https://www.helprange.com/?from=tool-cta#signUpSection) [Compare plans – from $39 per team](https://www.helprange.com/pricing?from=tool-cta) [See data rooms](https://www.helprange.com/feature-virtual-data-room)

Merging PDFs is handy for application packs, due diligence bundles and board packs – one file instead of ten attachments.

## When merging helps

One file is easier to read, forward and archive than ten attachments. Common cases: an application pack (CV, certificates, references), a board pack, a due diligence bundle of contracts, or scanned receipts for an expense claim. Name the files 01-cover, 02-summary, 03-appendix before choosing them and the order takes care of itself.

Page content, links and form fields are kept. Bookmarks and file-level settings of the individual PDFs may be dropped.

## After merging

- Add [page numbers](https://www.helprange.com/tools/add-page-numbers-to-pdf) so readers can refer to “page 14”.
- If the result is too large for e-mail, [compress it](https://www.helprange.com/tools/compress-pdf) or send a link instead.
- Photos and scans? Turn them into a PDF first with [JPG to PDF](https://www.helprange.com/tools/jpg-to-pdf).

Sending a pack of confidential documents to several outside parties, such as bidders or investors, is the point at which a data room is simpler than one big PDF: each document stays separate, every reader logs in and you see who opened what.

## Common mistakes

- Merging drafts: make sure every file is the final version – one big PDF is harder to correct than ten small ones.
- Mixed page sizes: A4 and Letter pages can be merged, but print previews will differ; convert scans to one size first.
- Password-protected files cannot be merged – remove the password first.

FAQ

## Merge PDF files – questions

In what order are files merged?

In the order shown in the file picker (usually alphabetical) – rename files 01-, 02-… to control it.

Are links and bookmarks kept?

Page content and links are kept; bookmarks of the separate files may be dropped.

Do you keep my files?

Only for a short time: uploads are deleted right after processing, the result after 30 minutes – or at once with “Delete now”.

 Related free tools

 [Split a PDF](https://www.helprange.com/tools/split-pdf)[Organize PDF pages](https://www.helprange.com/tools/organize-pdf)[Add page numbers to a PDF](https://www.helprange.com/tools/add-page-numbers-to-pdf)[Resize PDF pages (A4, Letter…)](https://www.helprange.com/tools/resize-pdf-pages)

[All free tools](https://www.helprange.com/tools)