Open Acrobat. This is an easy way to bring multiple PDFs together into one. iLovePDF is an online service to work with PDF files completely free and easy to use. Merge & combine PDF files online, easily and free Do you have multiple PDFs you need to merge into one? This is an easy way to bring multiple PDFs together into one. Merge PDF, split PDF, compress PDF, office to PDF, PDF to JPG and more! or drop PDFs here. Here's how to do it on each platform. Click Add Files or Open Acrobat to combine