PDF Merger
Merge, reorder, and select individual pages from multiple PDFs. Drag thumbnails to rearrange — everything runs in your browser.
Click or drag PDFs here
Upload multiple PDF files • Select & reorder individual pages
PDF Tools
19 tools available · tap any to get started
How to merge PDFs:
- Upload your PDF files by dragging and dropping or clicking the upload area
- Preview page thumbnails — drag them to reorder, uncheck to exclude
- Click "Merge" to combine all selected pages into one document
- Download your merged PDF file — everything runs locally!
🔒 100% Private
All processing happens in your browser. No files are uploaded to any server.
⚡ Lightning Fast
Uses Web Workers for non-blocking, parallel processing of your PDFs.
🎯 Page Selection
Pick exactly which pages you want, reorder them, and merge into a custom document.
What is PDF Merger
In this page, I show you how to combine and merge PDF files. If you find this guide useful, please consider share or bookmark for your future proof. And once you've done that, please consider leaving a comment in the bottom of page. Let's get right into this guide.
Preparing the PDF Files
Here are the PDFs I want to go and convert. As you can see, I've got three different ones. You can have more or less. Let's do this.
Opening a Web Browser
So the first thing you need to do is go and open up a web browser. We can actually do this online, but do keep watching—I'm showing you exactly how. I'm personally going to use Google Chrome, but you can use any browser you'd like.
Searching for a PDF Combiner Tool
Then, just come to a search engine. I'm using Google, but you could use any you'd like as well. All you need to do is search for 'combine PDF,' and then I'll show you what to do next. Literally, just search 'combine PDF' like so.
Selecting a Tool
There are many tools and websites out there that allow you to combine PDFs, but personally, I'm going to use combinepdf.com. Let's go and tap on it. Just for reference, at the top, we can actually select up to 20 PDF files to combine, which is really useful.
Uploading Files
Now, let's come back here. What you need to do is tap on 'Upload Files' just like so, and your file explorer will open up. Then, find the files—they should be on my desktop, and here they are. Select them by holding Control and clicking on them, then tap 'Open.' You can always press 'Upload Files' again to add more.
Arranging the PDFs
Now, as you can see, here are the files. Make sure they're in the correct order. To change it, hover your cursor over a file—it will change to a cursor with four arrows. Then, hold left-click and drag to rearrange. Personally, I want it to be Page 1, then Page 2, then Page 3.
Combining the Files
Once you've got them in the correct order, come to the bottom and press 'Combine.' It will take a moment, and then it will automatically download. As you can see in the top right, a file called 'Combined PDF' is automatically downloaded for me.
Checking the Result
You can always find your downloads in your file explorer's 'Downloads' folder. Here is the file—let's double-tap on it. If I scroll down, we've now got Page 1, Page 2, and Page 3, whereas before they were just individual PDFs.