To combine PDF files into a single PDF document is easier than it looks. Read on to find out just how to combine multiple PDF files on macOS and Windows 10.

You can drag and drop files into OneDrive by locating and selecting them in Windows' File Explorer and moving them to the OneDrive folder.

Click and hold on the document you want to upload, drag it to the Google Drive window (Figure C), and then release it. Figure C Select a file and drag and drop it into your Google Drive.

Readdle’s support for drag-and-drop in split screen mode will work its mobile scanning app, Scanner Pro; PDF reader and editor PDF Expert; email app Spark; and file manager Documents.