Setting up DYMO LabelWriter - Mac OS
To connect your DYMO thermal printer to your Mac computer follow the steps below:
1. Go to "System Preferences" and hit "Printers & Scanners app
" icon:
2. Click on the "+" sign to add a new printer:
3. Choose the DYMO from the list and click "Add":
4. You should now see your DYMO installed on your computer:
5. Open your browser (Google Chrome or any browser) and type the following: http://localhost:631/admin
now copy "cupsctl WebInterface=yes"
6. Open the Terminal app 
Now paste the content (command+v) and hit "enter" on keyboard (if you can't find the app try searching by using the "finder" on your Mac.)
7. You can now close the Terminal app. Go back to http://localhost:631/admin and click "Manage Printers"
8. Click on DYMO from the list, select "Administration" and hit "Set As Server Default"
9. From the next screen enter the "Media Size", "Resolution", "Media Source" and "Darkness". These options will vary depending on your Printer model. Your Mac will have the "Media Size" default to 2.25x4.00 on this example, but the next section will help you create a custom paper size.
10. Open a PDF file in Adobe Reader and from the tab select, File > Print > now click on "Page Setup" and say "Yes" if you get a pop up window
11. From the Page Setup, click on "Paper Size" and "Manage Custom Sizes"
For more information Visit DYMO or contact the Aravenda team.
12. Final step, click the "+", change the width and height according with your label size, make sure you have the Margins to "0 in", and last double click the "Untitled" to rename your tag.