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Home / Blog / How to Combine Multiple PDFs into One [2023 Newest]

How to Combine Multiple PDFs into One [2023 Newest]

By Roche | Follow twitter | Updated on March 30, 2023 | Deutsch Français
To merge PDFs into one file is conducive to file archival. No one wants to be tortured by a messed-up desktop full of unclassified PDFs. In other cases, you may need to add PDFs together for easier file transfer. If you do face the above situation, you may need to know how to combine multiple PDFs into one.

We may have been asked to put PDFs together at work. Do you know how to make two PDFs into one? This post will recommend several useful PDF mergers on Windows, Mac, and online to put multiple PDFs into one file.

How to Combine PDFs into One on Windows

For Windows users, this task requires a third-party PDF tool. So far, there is no built-in tool with the ability to add PDFs together on Windows.

SwifDoo PDF

SwifDoo PDF is a full-featured PDF program on Windows 10, 8, and 7, with more than 30 features to address PDF-related problems. This PDF merging tool doesn’t have a steep learning curve, so everyone can access the features without effort. Here’s how to combine several PDFs into one:

Step 1: Download and install SwifDoo PDF from the official website;

Step 2: Launch the program and navigate to the Page tab;

How to combine multiple PDFs into one in SwifDoo PDF

Step 3: Click Merge and the SwifDoo PDF Converter window pops up. Select Add Files to upload multiple PDFs into the workstation;

Step 4: Click Start to combine separate PDFs into one.

You can specify the page range for PDF merging. For instance, if the PDF has 50 pages, you can decide which pages you need to combine with another file.

Besides being an effective PDF merger on Windows 10, SwifDoo PDF is also an eligible PDF manager, which allows users to split a PDF into smaller parts, extract PDF pages, and delete a page from a PDF.

Foxit PDF

As another Windows-based desktop PDF manager, Foxit PDF also offers options to combine PDFs into one. Foxit PDF supports adding PDFs from a folder, webpage, scanner, or clipboard to the workplace. Take a look at how to put PDFs together:

Step 1: Download the software and install it on your PC;

Step 2: Open Foxit PDF and choose Merge PDF from the Tool Wizard;

How to combine multiple PDFs into one in Foxit PDF

Step 3: Select Add Files to add more PDFs to the panel;

Step 4: When finished, click Combine Files to combine the selected PDFs.

Merging multiple PDFs into one document is not difficult with Foxit PDF. In addition, this desktop PDF merger integrates more features to allow users to add PDFs from other sources, such as a local folder or scanner.

The above-mentioned PDF mergers are good at putting multiple PDFs into one. If you think the PDF merging process takes too much time, just minimize the program and let it run as a background process. It's way too time-saving and efficient, right?

How to Combine PDFs on macOS

If you are looking for a solution to make multiple PDFs into one on a Mac device, then this section may be helpful. The built-in PDF viewer, Preview, is able to process different fundamental PDF-relevant tasks, such as adding PDFs together for easier file management.

Merge PDF in Preview

No need for any external PDF software, Preview is an inbuilt PDF merging tool on Mac. It frees you from the trouble of the download or registration process, several clicks can easily combine multiple PDFs into one on Mac:

Step 1: Open a PDF with Preview;

Step 2: Select Thumbnails from the View drop-down menu;

Step 3: Place your cursor on any thumbnail page where you want to insert a new PDF;

Step 4: Select Edit to choose Insert, and then press the Page from File;

Step 5: Choose Open to add a PDF to the current document. Once finished, choose File and then click Export as PDF to save it as a single PDF.  

Although there are some professional PDF mergers available on Mac, I’m pretty sure Preview presents the easiest way to convert multiple PDFs into one. If you need to combine more than two PDFs at the same time, repeat the above steps until you're done. Additionally, Preview can combine a portion of a PDF with another PDF as well.

How to Put Multiple PDFs into One Online

If you just need to get everything done without downloading any software, online PDF mergers can add PDFs together. What’s more, web-based tools allow users to upload PDF files from cloud storage platforms, such as OneDrive, Google Drive, and Dropbox. That sounds nice for non-regular PDF users. Check out our recommendations to put multiple PDFs into one effortlessly:

Sejda PDF

Sejda PDF is a web-based PDF merger that allows users to switch between "Pages view" and "Files view." Users can decide what to add – from files or pages.

Step 2: Choose Merge on the tab POPULAR;

Step 3: Follow the instructions for uploading PDF and image files. Sejda PDF allows you to import PDFs from Dropbox, Google Drive, OneDrive, and web addresses.

Step 4: In the next step, you can reorder the PDF page by placing the cursor on any page, so the merged PDF is your preferred one;

How to combine multiple PDFs into one online with Sejda PDF

Step 5: Click on the Files view > Merge PDF files. Later, these two PDF documents will be combined.

Note: Optionally, you can click “Reorder” to organize these pages by file name (A to Z or Z to A). What makes it a convenient tool is if you need to add a blank page to the PDF at any time, click “Add Pages” and choose “Blank Page” in the drop-down menu.


Just from the brand name, we can easily tell this online PDF tool does well at combining PDF files. PDFMerge is indeed a decent image converter and PDF manager. It can resize, compress, and merge PDFs. In addition, it supports converting different image formats to PDF and vice versa, for instance, HEIC to JPG and WEBP to JPG.

Let’s have a closer look at how to merge multiple PDFs using this tool:

Step 1: Open the website and choose Select PDF Files;

Step 2: Click the Merge PDF button to start combining;

How to combine multiple PDFs into one online with PDFMerge

Step 3: Choose Download Merged PDF to output the combined PDF.

To sum up, online PDF mergers are the most direct way to combine several PDFs into one document. If you need more Internet-based PDF mergers, this post may be helpful.

Free & Safe Methods to Combine PDF Files Online

Free & Safe Methods to Combine PDF Files Online

Online PDF combiners are easy to use and require no registration. Read this article to figure out how to combine PDF files online for free.


Wrapping Up

Combining multiple PDFs into one can save a lot of trouble during file transfer if these PDFs belong to the same type.

Relatively speaking, desktop PDF merge tools outmatch online ones, as the former can provide more options. For online PDF tools, users need to pay attention to the file size or number. Some tools might set a maximum file number.


Q:How do I combine several PDFs into one for free without Acrobat?

All the listed PDF mergers are good alternatives to Adobe Reader or Adobe Acrobat, and they are free and safe to use. Online PDF merging tools have two or three free tasks per day, while desktop PDF mergers provide free trials to registered users. SwifDoo PDF can offer a one-month free trial for every user, allowing you to try it before purchasing.



More than 3 years of experience writing reviews and roundup articles in the document management and software industries. Always have a passion for trying new things, especially software. Currently working as the editor-in-chief of the AWZWARE team.

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