This is especially true of PDF files since Chrome can't open them natively and thus hands them over to other applications, the default being Google Drive's PDF viewer.

For instance, if you have a PDF file, you can open it in Adobe Acrobat or another PDF reader directly from Google Drive. This integration saves you from manually downloading and re-uploading files ...

Downloading a file or folder from Google Drive can generally be accomplished by right clicking or selecting the three dots next to the item's name.

Though it’s known primarily as an office suite, Google Drive is also a powerful PDF tool. Drive’s native features enable you to save just about any content as a PDF file.