There are times when you need to bring multiple documents together in a single file. Since most documents are shared in PDF format, knowing how to merge PDF files becomes important. In this article, I will show you different ways to combine PDF files across platforms.
I will cover methods for Windows, Mac, Android, and iOS. At the end, I will also share some useful online tools for people who do not want to install extra software. So, if you are searching for a reliable PDF merger, a PDF joiner, or simply want to know how to combine PDF files, this guide will help you.
Merge PDF Files
Merge PDF Files on Windows
If you are using the Windows system, you can use open-source software PDFSam. This is free software to edit, convert, insert, review, sign, and secure your PDF files. Install it and open it on your system. Drag and drop all the PDF files you want to combine or click. This tool also lets you select individual pages of each PDF file and change the order. The normalize page size option resizes all pages to have the same width as the first page. Select this option if you want.
Finally, select the location of the resulting PDF file and click Run to start the execution.
Merge PDF Files on Mac
If you have a Mac system, you do not need any dedicated software to merge PDF files. Go to Finder and navigate to the folder where PDF files are saved. Now select all the PDF files you want to merge, right-click, and then select Quick Actions -> Create PDF. It will combine the PDF files to create one.

You can then open the newly created PDF file, and it will show you the preview with all pages at the left sidebar. Drag pages to change their order as per your need.
Merge PDF Files on iOS
Merging PDF files on iOS is similar to how we do it on Mac. Open the Files app on your iOS device and locate the PDF files you want to merge. Now tap the three horizontal dots icon at the top right side and tap “Select“. Now select all the PDF files you want to merge and then tap the three-dots icon in the bottom-right corner > tap Create PDF. That’s it.
Merge PDF Files on Android
If you are on Android, you can download and install PDFelement by Wondershare. This app is free to download and works really well. The app lets you perform several PDF operations, including merging PDF files. Just use the Combine PDF option.
Online tools to merge PDF files
There are several web-based tools to merge PDF files. If you do not want to install any software, you can bookmark a good PDF merge tool to combine PDF files whenever you want.
1. SodaPDF
SodaPDF is a good tool. You just need to open the website, drag & drop PDF files and combine them. There is no limit on how many files you add and merge. There’s also a Soda PDF desktop app to edit, compress, split, secure, and merge PDF files offline.
2. Smallpdf.com
Smallpdf.com offers several PDF tools, including a tool to combine PDF files. This Merge PDF tool lets you combine several PDF files into one PDF file. Drag and drop PDF files into the uploader section, rearrange individual pages to get them in the desired order, then click ‘Merge PDF!’ to combine and download your PDF.
3. I Love PDF
Ilovepdf is another popular PDF tools website offering several PDF editing tools. You also get the Merge PDF tool, where you can upload PDF files and merge them. You can also change the order if you want. Just drag and drop all files you want to merge and click the Merge PDF button on the right side of the screen/









