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I-PNG (Portable Network Graphics) ifomethi yesithombe eyaziwa ngokuminyanisa okungalahleki nokusekelwa kwengemuva elibonisa ngale. Amafayela e-PNG avame ukusetshenziselwa ihluzo, amalogo, nezithombe lapho ukulondoloza imiphetho ebukhali nokuba sobala kubalulekile. Ziyifanele kahle imidwebo yewebhu kanye nomklamo wedijithali.