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I-EPUB (i-Electronic Publication) ngumgangatho ovulekileyo we-e-book. Iifayile ze-EPUB zenzelwe umxholo onokuphinda uqhutyekwe, okuvumela abafundi ukuba bahlengahlengise ubungakanani bombhalo kunye noyilo. Ngokuqhelekileyo zisetyenziselwa ii-e-books kunye nenkxaso yeempawu ezisebenzisanayo, ezizenza zilungele izixhobo ezahlukeneyo ze-e-reader.
I-JPEG (iQela leeNgcali zeeFoto eziHlangeneyo) yifomathi yomfanekiso esetyenziswa ngokubanzi eyaziwa ngokucinezelwa kwelahleko. Iifayile zeJPEG zifanelekile kwiifoto kunye nemifanekiso enemibala egudileyo. Banikezela ngebhalansi elungileyo phakathi komgangatho womfanekiso kunye nobukhulu befayile.