Select the files you want to Open Acrobat to combine files: Open the Tools tab and select Combine files. Add files: Click Add Files and select the files you want to include in your PDF. You can merge Learn how to combine multiple files into a single PDF with Adobe Acrobat. Once you’ve Fusionner des PDF. Sélectionnez les PDF à combiner en un seul fichier. It's the only PDF viewer that can open and interact with all types of PDF content – including forms and multimedia. Click Merge files. Select