Merge Multiple PDFs into a Single File for Free

Easily combine multiple PDF files into one document. No signup or registration required.

Drag & Drop PDF Files Here

Choose Files

How it works

Getting Started

Easily combine multiple PDF documents into one. Click ‘Choose Files’ to upload a PDF from your device or simply drag and drop it into the box.

Arrange PDFs

Use your mouse or touchscreen to rearrange the documents you wish to merge and place them in the desired order.

Run it Free of Charge

Forget about paid software, add-ons and hidden fees. AltoMergePDF enables you to process your documents for free.

Secure Data Processing

We use encrypted cloud storage to process documents you upload and merge. Each file is deleted from the server as soon as the job is done.

Compatible with Any OS

AltoMergePDF is a web-based platform. Therefore, it works equally well on any Internet-connected device regardless of its type (desktop or mobile) and OS.

Merge PDFs Online

Forget about storage space and memory being taken up on your device. Save free space and merge your PDF documents faster online.

Characteristics

File extension	.pdf
Internet media type	application/pdf
Description:	The PDF format was released in the 1990’s. It was designed to unify the process of exchanging files and make it independent of installed software and operating systems. In comparison with other formats, PDF keeps the initial document structure unchanged. With PDF you don’t need to worry about how your file looks once it’s printed or opened with another program.
Technical Details:	Every PDF file comprises of a full description of a 2D document with a fixed-layout. The document may include either vector or raster images, hyperlinks, buttons, text blocks, diagrams, etc. It also includes a font replacement technology that allows fonts to be stored inside of the document. Starting from the version 1.4, PDF format also supports graphics transparency.
Developed by	ISO
Initial Release:	15 June 1993
Useful links:	https://en.wikipedia.org/wiki/PDF https://fileinfo.com/extension/pdf

Customer Questions and Answers

Question:

Got in trouble trying to merge several PDFs into a single one. The thing is that I don't want to install any special program to my computer. So, is it possible to complete the process online? Please, right now it's a matter of life and death for me.

Answer:

AltoMerge provides you with the capability to combine your PDFs from any internet connected device. No need to install software. You can also go to AltoPDF to see the whole range of features allowing you to change your documents while on the go.

By Bruce on December 04, 2017

Question:

I am looking for an application that will allow me to batch merge files from a specific folder into a single PDF. Any Ideas?

Answer:

There’s this online tool you should check out. Just go to altomerge.com and drag and drop as many PDFs as you need. Then press the Merge PDFs Now button and you’re there!

By Andrew on March 10, 2018

Question:

Here’s a question. I want to keep references to my original PDF files after I converted them into a new document. It could either be a link or a bookmark. Is there a free PDF merge tool that does that?

Answer:

Try out altomerge.com and see how it goes. They have a great number of features you can apply to your converted pdfs, including adding links, bookmarks, text fields, etc.

By Beverly on February 13, 2018

See All Question

Customer Reviews

Linda

08/02/2019

The quickest and the nicest tool for arranging PDF documents online. Simple and useful. I use AltoMerge on my Mac and my Android smartphone and it works well on both devices.

Mike

04/02/2019

I’ve been using AltoMerge to combine large PDF files for a long time now. I do think it’s the best free solution on the web. Oh, and there’s also an option that enables you to redact the merged PDF file. Awesome!

See All Reviews

Rate the AltoMerge

4.5

11,896Votes

How-to guide

How to combine multiple PDFs into one document online:

Open AltoMerge.com in your web browser.
Click Choose Files to add PDFs stored on your hard drive.
Import documents stored online by clicking one of the cloud storage service icons.
Wait for your upload to complete, then click Merge PDFs Now!
Choose what else you’d like to do with the resulting document.
Click Continue Editing to edit, sign or share the document you’ve just created.
Click Download PDF to save the document to your device’s hard drive.
Click Start over again to merge another PDF file.

How to Merge PDF Files

Today digital document management has become more popular than ever. People prefer saving and storing documents on their devices. This allows for important files to be accessible anywhere and anytime. In some cases you may need to make changes to your PDFs. In the past you had to print them out and create new documents by copy-pasting or typing the information all over again. Since technologies are constantly improving, on today's market there is a number of powerful tools that give you the ability to not only edit but also transform PDFs in different ways such as:

split them into separate units
merge them into a single file
convert to other formats like JPG, PNG, PPT, Word or Excel
rotate pages, etc.

Imagine a situation where you need to immediately combine several files and you don't have much time to scan them or don't have the appropriate equipment. With today's advanced online mergers, this is no longer an issue. Now you can easily create a single doc from several PDFs instantly, even while on the go.

How to Combine and Merge Files into One PDF?

Nowadays the market is overwhelmed by choice and sometimes it can be difficult to find the best tool, especially if you’re a first-time user. If you are hesitating to make a choice, look through the pros and cons of digital merging services:

no need to download and install any additional software to change your documents or use storage space on your device
most of them can be used completely for free
intuitive and convenient interface that allows you to combine PDFs with ease
step-by-step instructions with a logical sequence
fast processing of your files without any worry of their security
compatibility with all major OS’s such as Windows, Linux, Mac, Android and iOS
optimization for mobile devices
ability to merge pdf documents into one and store them in a cloud
automatically updated features
ability to edit a merged file according to your needs

The only thing you have to take into account is having a stable internet-connection.

According to the above-mentioned information, online PDF mergers are user-friendly. To get the desired result, you only need to complete a few simple steps:

first, open the specific online tool
after that, upload the units you want to merge from your device or cloud storage to a drag and drop box
once you’ve finished, click the “Start now” button to combine the pages
finally, download the newly created PDF to your computer, smartphone or tablet or save it to cloud storage
continue editing if necessary

How to merge PDF files without Acrobat?

If you opt for a digital service to merge your PDF files, you are definitely making the right choice.

A document can be transformed in seconds without any supplementary applications.
Moreover, online tools ensure the security of your PDFs.
The online service features an encrypted connection for securely uploading and transferring files.
All units are automatically deleted from a server after they`ve been processed.

Did you know?

Your PDF is fully editable

Once you’ve merged the two documents into one, you’ll be able to continue editing. Take advantage of our free and reliable online pdf editor. The Toolkit provides a feature-rich experience with descriptions and hints for every tool. Enjoy an unmatched user experience from any device you use.