Steps to combine PDF files in Windows 10:

• Adobe Acrobat DC should now be open. Select Tools > Create & Edit from the menu bar.
•  Select Open from the Combine Files menu.- This will take you to the Combine Files workspace, where you can add files, reorder them, and merge them into a single PDF file. The beauty of this application is that it can handle a wide range of file kinds, including PDF and picture files as well as Word and Excel documents.
• In the Combine Files workspace, drag and drop the files you want to combine OR select them in a dialogue box by clicking Add Files. Drag & drop the files into the order that you want them to appear in the final PDF document.
• Drag & drop the files into the order that you want them to appear in the final PDF document.
• When you're ready, hit Shift+Ctrl+I or select the Combine button in the top-right area.A tab will appear next to the Home and Tools tabs once your files have been merged into a single PDF document. To view the paper, simply click on it.
• Once you're happy with the PDF document, save it by clicking the Save symbol in the top left corner. Ctrl+S is another option. A tab will appear next to the Home and Tools tabs once your files have been merged into a single PDF document. To view the paper, simply click on it.

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