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I-PNG (i-Portable Network Graphics) yifomathi yomfanekiso eyaziwayo ngokucinezela okungalahlekiyo kunye nenkxaso yemvelaphi ecacileyo. Iifayile zePNG ziqhele ukusetyenziselwa imizobo, iilogo, kunye nemifanekiso apho ukugcina iincam ezibukhali kunye nokungafihli kubalulekile. Ziyifanele kakuhle imizobo yewebhu kunye noyilo lwedijithali.
Iifayile zemifanekiso, njengeJPG, PNG, kunye neGIF, gcina ulwazi olubonakalayo. Ezi fayile zinokuqulatha iifoto, iigrafiki, okanye imizobo. Imifanekiso isetyenziswa kwiinkqubo ezahlukeneyo, kubandakanywa uyilo lwewebhu, imidiya yedijithali, kunye nemifanekiso yamaxwebhu, ukuhambisa umxholo obonakalayo.