← All tools
PDF ToolBuilt into the unified PDF editor

Merge PDFs

Combine multiple PDF files into a single document, in the order of your choice. You can also merge directly from the editor (File menu), without leaving your document.

Merge PDFs in DocuNest: 100% local processing on Windows, macOS, and Linux. Automatable via the docunest CLI.

Download DocuNestDiscover the PDF editor →
Merge PDFs
Preview of Merge PDFs in DocuNest, offline PDF app

Built into the unified PDF editor. This tool is used directly within the DocuNest editor: open your PDF, apply the action, undo with Ctrl+Z if needed, then move on to any other tool — without ever reloading your file.

Discover the PDF editor →

Features

Combine an unlimited number of PDFs
Reorganize files using drag and drop
Result preview before export
No limits on file size or number of pages
Merge from the editor (File menu), without leaving your document

Use cases

1

Administrative files

Group invoices, contracts, and supporting documents into a single file.

2

Multi-part reports

Assemble contributions from multiple authors into a final document.

3

Archiving

Consolidate your monthly documents into an annual PDF.

Command line

Same result as the interface, in one command. Nothing leaves your machine.

docunest — zsh

local
# Merge two files
❯ docunest pdf merge -i file1.pdf file2.pdf -o result.pdf
✓ Done — file written locally, no network upload

Complete CLI documentation →

Frequently asked questions

How many files can I merge?
There is no limit. You can merge as many PDFs as you need.
Is the page order preserved?
Yes. Pages appear in the order of the files you add. You can reorganize them before export.
Can I merge without leaving my current document?
Yes. The editor's File menu allows you to merge a PDF directly into the open document.
Are bookmarks preserved?
Bookmarks from each source file are preserved in the merged document.

Similar tools

✂️

Split a PDF

Cut a PDF into several files by page ranges or page by page. Split directly from the editor (Document menu, Export), without leaving your document.

📑

Extract pages

Extract one or more pages from a PDF to create a new, lighter document. Directly in DocuNest's unified PDF editor (Pages menu).

📋

Reorder pages

Change the page order of a PDF with a simple drag-and-drop, directly in DocuNest's unified PDF editor.

Stop sending your PDFs to the cloud.

Download DocuNest: the complete editor, 7-day trial, no credit card, no files leaving your machine.

Download for free

Download DocuNest

No account required, no data collected.

Windows.exe · Windows 10+macOS.dmg · macOS 12+ · Apple Silicon

Linux

Install a system package, or use the AppImage if you prefer a portable version.

DEBDebian / Ubuntu.deb · system installRPMFedora / RHEL.rpm · system installAPPAppImagePortable, no install

Windows 10+, macOS 12+ (Apple Silicon), Linux (deb / rpm / AppImage)