How to attach document with Quote?

While creating a Quote, there is an option to upload the document. Click on Upload Files.

Option of Uploading Document will show the number of documents attached and if you want to delete the attached document then click on the delete icon against the file name. After that save the Quote as Approve.

From the listing page of Quote, open a sent Quote in View mode and click on the uploaded document then it will show the attached document. If you want to see the attached document then click on view.