Go to your materials overview and press the "Action" button on the upper right corner. Select all your desired materials you wish to print. Tap the "Export" button on the lower right corner. Choose "PDF" as export type. You can now specify if you want to "Ignore single colors". This is useful when you don't want to print labels for mixtures that you don't have to mix. Now tap "Export" on the upper right corner and send the PDF to yourself or a friend via eMail etc.