Why do I have multiple PDFs instead of one?

There are many reasons why you may have come across two or more PDFs instead of just one. You may have exported each page to different .pdf files, or you might have edited one of the sheets and when doing so, you generated several files separately. Luckily, you can merge PDFs into one document.

Is there a limit to combine PDF?

No, there is no limit to merge files. A PDF is a document that can have as many pages as you want. Thus, you can upload as many PDFs as you want to join them in one single file. Once you have joined them, each PDF will be shown in a different page (or several pages if the file had more than one).

Can I merge photos (JPG) with a PDF?

Yes, you can combine PDF files that, in turn, will join a JPG within the same document. You can create your PDF document by mixing existing files with photos that you want to add to the pages.

Does putting my files together change the document's format?

No, the document's extension when joining several different PDFs will not change. You can join, combine, and group PDFs without changing their file extension. The resulting file that you can download will remain a .pdf file.

Do I need a program to merge PDFs?

No! You do not need to install any program, with our online tool you'll get the same result as with any paid program. In addition, it has several advantages as it is free, doesn't require installation and operates from any device.

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Q: Will joining two PDFs into one make the file weigh twice as much?

The more pages the PDF has, the more space the document will occupy. If you want, you can compress the resulting PDF after joining so that it weighs less. In any case, the file should not take up twice as much space because the files you are joining share a lot of information in the .pdf extension that doesn't need to be duplicated.

Merge PDF files without installing any software. Simple, quick, reliable PDF combiner.

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Combine PDFs In Just One Click

Do you have multiple PDFs that you’d like to join as a single file? Then you've come to the right place. This online tool lets you merge PDF files to save them as a single file on your computer or mobile. You don’t have to register, it’s free, and the tool is really easy to use.

Once you download the file, remember that you can compress, sort, and even edit it with FormatPDF’s complete suite of tools.

100% Online: Merge PDFs Without Installing Programs

One advantage of our service is that you don't need to install any programs. As such, you can merge PDFs online anywhere at any time, whether from your computer —on a web browser, like Chrome, Edge, or Firefox — or your mobile or tablet.

Totally Secure And Private

With our combiner, your files won’t be publicly displayed anywhere. Thus, only you will be able to see and alter the documents you upload. Also, you're the only one who can download the resulting file, and no one else will have access to it. Your privacy is very important to us. See our policy on this.

No Advertising When You Merge PDF Documents

In the past, you might have found software that promised to combine PDFs but, once you downloaded the resulting file, there was a watermark on every page. By comparison, rest assured that our merger tool is developed to merge files without adding a watermark or any other advertising.

Compatible With All Devices Without Installation

Another of the advantages of our PDF merger is that it’s compatible with all devices and operating systems. This ranges from Windows to Android, going through Mac, Linux, iOS, and any other platform. So you can use it, whatever device you’re on.

Save Space On Your Device With Our Cloud-Based Tool

A further advantage of merging PDFs online with this tool is that the whole process takes place in the cloud. Thus, you don't need to take up hard disk memory or computing resources on your device while combing PDF files. The only thing you have to do is download the resulting document when it’s ready.

Joining PDFs Has Never Been Easier

Forget about the complex processes to combine PDFs that you may have encountered in the past. As this is a 100% online PDF combiner, the only thing you need is your internet browser. The merging process takes just a few seconds, resulting in a single convenient document to download, easy-peasy.

Step By Step: How To Merge PDF Files

Here are the steps to merge your PDFs with our tool:

To upload the documents you want to merge, select all of them (ctrl + click on Windows; cmd + click on Mac), and drag them to the action space above. If you prefer, you can also click on the "Select PDF files" button and upload the documents from the file explorer.
Organize the files in your preferred order, and click on the "Merge PDF" button.
In a few moments, your browser will automatically download the resulting file. If not, you can download it manually by clicking on the "Download PDF" button.

Other Options To Combine PDFs

Merge PDFs On Windows

Windows doesn’t offer any default programs for this action, but there are many installable software solutions to combine PDFs. Whatever program you use, the procedure is as follows:

Open your chosen program to merge PDFs and load the first of the files.
Now look for an option called "Merge", "Combine" or "Group" (the name changes depending on the program). Click the option, and select the other file you want to combine.
Do this and, in a matter of seconds, your file will be ready.

PDF Combiner On Mac

Mac users have the advantage that macOS, Apple's desktop operating system, has a native option to merge PDFs. This is done with Preview, Apple's default PDF viewer. The steps to follow are:

Open your file with Preview.
Tap on "View" and then click on the "Thumbnails" option.
Select the thumbnail of any page, then go to "File" > "Edit" > "Insert", and then select "Page". If this last option is turned off, it means that the document is protected against editing.
Select the file you want to add and, finally, go to "File" and click on "Export as PDF" to save the merged file.

Combine PDFs On Android

Android doesn't have any in-built options to merge PDFs, although fortunately, there are apps available in the Google Play Store to do this. There are paid apps, such as the well-known Adobe Acrobat Reader, and there are free options. To find a free app, the best thing is to search by typing “combine PDF” or something similar.If you decide to use Adobe Acrobat Reader, which requires a paid license, the steps to combine PDFs are as follows:

Open Acrobat Reader on your Android phone or tablet.
Click on the "+" icon at the bottom right of your screen.
Tap on the "Combine files" option and follow the on-screen instructions.

PDF Merger On iPhone/iPad

The steps to merge PDFs on iPhone may seem a bit confusing at first, as they differ from the procedures for other devices. However, fortunately, this action can be executed in a few minutes as follows:

Go to the Apple App Store and download any of the available applications to merge PDFs. You can search for "merge pdf" to see the most popular options.
Once you've installed the app, navigate to the Files app, the default app for viewing files on your iPhone.
Here, select the files you want to merge, tap on the "Share" icon (with an arrow pointing up) you'll see at the bottom of your screen, and then choose the merge PDF app you’ve installed.
Now, follow the on-screen instructions.

After This, You May Also Need:

Once you’ve used our PDF combiner, you might find that some platforms have a weight limit to upload files. When you merge several PDFs, the weight of the file goes up noticeably. This is why you may need to reduce the space your PDF occupies:

Compress Your PDF So It Weights Less

Frequently Asked Questions About Joining PDFs

How can I combine other kinds of files besides PDFs?

To combine other sorts of files, you must first convert them into PDFs. For example, if you have a number of Word files that you want to join together, you can convert Word to PDF documents on our website. The same is true Excel, ePub and HTML files, plus other formats.

Is there a limit to how many PDFs I can combine?

No, there’s no limit to the number of PDFs you can merge. In general, PDFs can have as many pages as you need, and thus, you can merge as many PDFs as you want into a single file. Once you combine them, each PDF will be shown on a different page.

Will joining two PDFs into one make the file weigh twice as much?

The more pages the file has, the more space the document will occupy. If you want, you can compress the resulting PDF so that it weighs less.However, the merged file shouldn’t take up twice as much space. This is because the files you join share a lot of information in the .pdf extension that doesn't need to be duplicated.

Can I merge photos (JPGs) with a PDF?

Yes. However, to do this, you first have to convert the JPGs into PDFs or add the JPGs to an existing PDF. You can do either of these things online with our tools, and both processes take just a few seconds. Then, you can combine all the files into one.

Does combining PDFs change the document's file format?

No. When you combine PDFs, the resulting document's file format won’t change. The extension of the file you download will remain .pdf. As such, you can rest assured that you’ll be able to save, send or upload your new file however you need, without having to alter its format.

Do I need to download a program to merge PDFs?

No! You don’t need to install any programs because, with our online tool, you'll get the same result as with any paid software. In addition, our service has several advantages, such as it’s free, doesn't require installation, and operates from any device in the cloud.