Samsung devices with the One UI user interface can send files such as text documents, PDF files, images or any other printable file directly to the printer for printing. Samsung smartphones and tablets have a standard Ducker service already installed to print the files, and in some cases, and for more options, a printer from the manufacturer must be installed.

Android 10 (One UI 2.0)
Step 1:  Open the  Gallery
Step 2:  Choose  File  you want
Step 3:  Open the  menu
Step 4:  Tap on  Print
Step 5:  Tap on  Save as PDF
Step 6:  Choose desired  Printer
Step 7:  Tap on  More
Step 8:  Tap on  Print
  1. Open the Gallery
  2. Choose File you want
  3. Open the menu
  4. Tap on Print
  5. Tap on Save as PDF
  6. Choose desired Printer
  7. Tap on More
  8. Tap on Print

Samsung Instructions