One of the biggest advantages of a PDF is the "Find" function (Ctrl+F). When a student needs to quickly locate the definition of "specific heat capacity" or review "Ohm's Law," they can search the document instantly rather than flipping through pages.
A: If you have a receipt or proof of purchase (e.g., "Pradedu mokytis" code), some publishers will give you access to the e-book version at no extra cost. Contact the publisher directly via email.