Combine multiple PDF files into a single document in your browser. No install, no signup.
Updated
/ 5 - Be the first to rate this tool Thanks for rating!
Verification failed - please try again.
Quick check
Please verify you're not a robot to submit your rating.
Give feedback
Tell us what you think about Merge PDF files online for free.
Drop PDF files here, or click to upload
Add two or more PDFs, in any order
Your file will appear here.
Processing…
- Runs entirely in your browser — your files are never uploaded
- Combine any number of PDFs into one, in the order you choose
- Free, no account or watermark
How it works
-
1
Upload one or more PDF files.
-
2
Reorder, remove, or select the pages you want.
-
3
Apply the change and preview the result.
-
4
Download the updated PDF.
Why use this tool
Every PDF task, one place
Merge, split, compress, convert, sign, and more — no need to juggle separate apps for each job.
Private by default
Most tools process your file entirely in the browser — it's never uploaded. When a conversion needs the server, the file is deleted within the hour.
Works on any device
Runs in the browser on Windows, Mac, Linux, iOS, and Android — nothing to install, nothing to trust but the tab.
Fast by design
No queues and no desktop app to wait on — most jobs finish in a few seconds, right where you are.
Convert to and from any format
Move between PDF, Word, Excel, PowerPoint, images, and HTML — output stays true to your original formatting.
Free, always
Every tool here is free to use, with no watermarks, page limits, or forced trial period.
Frequently asked questions
You can combine dozens of files in a single batch, limited only by your browser's memory capacity.
No, the pages are stitched together exactly as they appear in their original source files.
Yes, you can simply drag and drop the file thumbnails into your desired sequence before clicking merge.
Most form fields are preserved, though if multiple documents share the same field names, their data may conflict.
Each page retains its original physical dimensions; the resulting document will simply contain mixed page sizes.
From the blog
Editing a PDF in Your Browser: How a Client-Side PDF Editor Actually Works
Adding text, filling forms, signing, and rearranging pages without a single byte leaving your machine. Here is what a browser-based PDF editor can do, what it cannot, and why that distinction matters.
How to Make Your PDFs Accessible: Screen Readers and Standards
A practical guide to making PDF documents accessible for screen readers and compliant with WCAG standards without rebuilding them from scratch.
How to Sign, Secure, and Password Protect Your PDFs Online
Learn how to protect sensitive information in your PDFs, apply password encryption, and electronically sign documents directly in your browser securely.
Related tools
Delete pages from a PDF for free
Remove one or more pages from a PDF, right in your browser.
Extract pages from a PDF for free
Pull specific pages out of a PDF into a brand new document.
Reorder PDF pages for free
Drag and drop page thumbnails to put your PDF pages in a new order.
Split a PDF into separate files for free
Extract pages or split a PDF into multiple files instantly in your browser.
Convert numbers between bases
Convert a number between binary, octal, decimal, and hexadecimal instantly in your browser.
Generate a strong random password
Generate a cryptographically random password with adjustable length and character sets, in your browser.
Generate a PayPal.Me QR code for free
Create a QR code that opens your PayPal.Me link, optionally pre-filled with an amount.
AISummarize what changed between two PDFs
Upload two versions of a PDF and get a plain-language summary of what changed.
Edit a PDF for free
Add and edit text on any PDF page, with your choice of fonts, right in your browser.
View and edit PDF metadata for free
See and change a PDF's title, author, subject, and keywords, right in your browser.
Make a scanned PDF searchable for free
Run optical character recognition on a scanned PDF to add a selectable, searchable text layer.
AIClean up OCR text with AI
Paste text extracted by OCR and get it corrected and cleaned up.