This article explains how to combine PDF files into a single document using Acrobat DC, Mac Preview, and the PDF Merge website. Additional information is provided about combining PDFs on mobile devices and using Combine PDF and Merge PDF.
How to Merge PDF Files into One File (Combine) – Full Guide
Adobe Acrobat Reader is free. You can use Acrobat Reader to view, print, and annotate PDF files. To further edit these files or combine multiple PDFs into one, install Acrobat DC.
To merge PDF files using Adobe Acrobat DC, follow these steps:
Open Acrobat DC and select Tools > Combine Files.