How to combine two PDF files into one PDF

As PDF is used often in our daily lives and work, you may meet some situations to combine two PDF files into a single PDF. For example, when you download two parts of a PDF ebook and want to combine them together as a complete one; Or you want to add a PDF cover page to the finished PDF book.

For these cases, you may need to combine two PDF files into one PDF. You may wonder: What tool you need to combine the two PDF files into a single one? And how to combine them? You need this tool, Simpo PDF Merge & Split, which combines a PDF combiner with a PDF splitter so that you can not only combine two PDF files, you can also split a PDF to many separate PDF files if you need.

1 Download and run PDF combiner

Click below Free Trial button to download Simpo PDF Merge & Split and install it in your computer, click shortcut on the desktop to launch it.

Note: Only Windows version is available right now for users who are using Windows 8, Windows 7, Windows Vista and XP.

2 Import the two PDF files need to combine

This PDF combiner supports two ways to import the PDF files: click the Add button and use the drag-and-drop function. If a PDF document you add is protected by user password (which means you cannot open it unless you enter the correct user password), the Password field shows Need, so, you have to click Password button to enter the user password for the next step.

PDF combiner to combine two PDF files

3 Settings to combine two PDF files

At the bottom of the PDF combiner, you can customize the settings as your own habit to combine two PDF files into one PDF, like the Base name and Output Folder. You can also set password to prevent the combined PDF from copying, printing, or editing, just click the Advanced Setting button and below box pops up, check the Enable PDF Security option and enter password.

set security to combine two PDF files into one PDF

3 Combine two PDF files into one PDF

Now, you can press the Merge button to combine two PDF files. Wait for seconds, you will get a new wanted PDF file which is combined with two PDF documents.

Of course, you can also combine two and more PDF documents into one. And you can adjust PDF sequence with button "Up" and "Down".

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