Merging PDFs: Explanation and Step-by-Step Tutorial

The file format PDF (Portable Document Format) is ideal for sending documents and offers many advantages. For example, the format can be used across different platforms and always maintains the same layout and structure since it embeds fonts and graphics. Users have access to a wide range of free programs for opening PDF files.

In some cases, it can make sense to edit the practical files before sending. The most commonly used editing options include the merging of PDF files. In this article, we explain when this is advisable and which free tools can be used to this end.

Why Combine PDF Files?

If you send multiple PDFs, this can quickly become cumbersome for the recipient. That’s because they have to download, open and read each document individually. The same is true when scanning multiple pages individually, which actually belong together.

In both cases, it’s helpful to merge the PDF files. However, the standard read program Adobe Acrobat Reader does not offer this function in the free version. Nonetheless, there are many tools that enable you to do exactly this. Various free online tools are available from different providers. But when you combine multiple documents, the final file can be very large in certain circumstances. Our article “Reducing PDFs” therefore offers you some practical tools that allow you to easily reduce the data size.

Tip

In other practical examples, it’s necessary to split up an existing PDF into several documents. Free tools and programs are also available for this purpose. Find out what these are and how they work in our article “Splitting PDFs”.

Combining PDFs: Online with PDF24 Tools

Online tools are especially practical when the job needs to be done fast. Without having to download the program, you can quickly merge multiple PDFs into a single document. The PDF24 Tools web suite offers such a solution. In just a few steps, you can combine your PDFs directly in your browser – so long as you have an active internet connection.

Step 1: Visit PDF24 Tools and Click on “Merge PDF”

Go to the PDF24 Tools homepage. The very first option you should see will be the “Merge PDF” tool. Click on the button to open the function.

Step 2: Upload the PDF Files

In the next step, upload the PDF documents that you want to combine. This works using drag and drop or by uploading the files via the file path. In addition to that, the icons in the bottom right edge of the upload window allow you to import PDFs directly from Google Drive or Dropbox.

Step 3: Check the Order of PDF Pages

To change the order of the uploaded documents, click on one of the PDFs and drag it into the right position. You can then already export the new file. Simply click on the “Merge” button.

If not all pages from the individual files should be combined into the new PDF, and you should start the extended editor model by placing a checkmark next to “Advanced mode”:

Step 4: Select Pages

In the advanced mode, PDF24 Tools shows you all pages individually. Select those that you need in the new PDF. The quickest way to do this is using the plus and minus symbols. This allows you to add all pages in a row:

The selected pages will be displayed with a brown border and can be recognized at a glance:

Step 5: Adjust the Page Order in Advanced Mode

In the last section of the advanced mode, PDF24 Tools shows all pages that you have selected for the merged PDF. Before exporting the file, you also have the option here to adjust the order of the pages. To do so, click on the desired section and drag it to the new position. Once you’ve finished editing, you can start exporting the file by clicking on the “Merge” button.

Step 6: Download the New PDF File

The new PDF has now been created. To save the document locally, click on “Download”:

Alternatively, you can also use other export options – such as sending by email, saving in Dropbox or Google Drive as well as sending by fax. The program also enables you to edit or reduce the document, set up password protection as well as split the document into multiple PDFs in the last work step. Click on the three points to open the menu for these extra options:

Other Free Online Tools for Merging PDFs at a Glance

The free alternatives to PDF24 Tools differ only marginally. The following table shows the advantages and disadvantages of the tools:

Tool provider

Advantages

Disadvantages

PDF24 Tools

Various functions, automatic file deletion after an hour, hardly any advertising

 

SmallPDF

Most comprehensive program without advertising, automatic file deletion after an hour

Free test version limited to 14 days

SodaPDF

Particularly fast PDF merging

Advertising, no editing options

CombinePDF

Particularly fast PDF merging

Advertising, no editing options

Combining PDF Files: Offline with PDF24 Creator

Using the right free program, it’s also possible to merge PDFs without an internet connection. One-time installation is especially worthwhile if you regularly deal with PDF files and want to maintain maximum control of your data. In the following step-by-step guide, we show you how to merge multiple PDFs with the Windows application PDF24 Creator.

Step 1: Installation and Launcher Start

Download and install PDF24 Creator and then open the PDF software launcher. At the beginning, you’ll have a range of features available. Select the option “PDF Creator”.

Step 2: Import PDF Files for Merging

Now select the PDF files you’d like to combine into a document. You can do so by double clicking on the PDF or using drag and drop:

Step 3: Merge Documents or Pages

As soon as you’ve opened all documents, merge them together. In this example, we combine PDF 1 and PDF 2. We drag the pages of PDF 2 into the area of PDF 1. PDF24 Creator then automatically combines them into a single document.

The documents are displayed by page. This means it’s also possible to just add individual pages from multiple PDF files.

Step 4: Set and Save the Order

Insert all the pages of the new document in the first row. If you wish, you can change the order by dragging the page to the desired position. When you’re finished, click on the floppy disk symbol to save the PDF.

Step 5: Configure Export Settings

PDF24 Creator offers extensive settings for exporting a new document. If you’re only sending a PDF digitally, the default setting is usually suitable. In this case, proceed by clicking on “Continue”. If you also want to print a PDF, it’s a good idea to configure a higher quality and resolution.

Tip

If a PDF contains sensitive data, protection against unauthorized access is recommended. Find out how to protect your document with PDF24 Creator in our article “Encrypt PDFs”.

Other Free Desktop Programs for Merging PDFs at a Glance

PDF24 Creator is one of the standard programs for merging PDF files. The following table enables you to compare the classic application with two other free alternatives:

Programs

Advantages

Disadvantages

PDF24 Creator

Various functions, hardly any advertising, PDF encryption possible

No modern user interface

7-PDF Split & Merge

Multilingual, fast processing

No more than five PDF files can be combined

PDFtk

Open-source software, actively developed

Only available in English

 


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