Sele sithethile kwizihlandlo ezidlulileyo malunga iifomathi zamaphepha I-ISo ilawulwa ngo-1922 ngumgangatho we-ISO 216 kwaye yenziwa yinjineli yaseJamani uGqr. UWalter Porstmann. Kodwa kuninzi lwe America, EUSA, Canada nase Mexico, azilawulwa zezi fomati zamaphepha, kodwa zineetafile zazo zemilinganiselo echazwe yaza yafaniswa I-ANSI (I-American National Standards Insitute) ngo-1995, into ebizwa ngokuba yi-Anglo-Saxon. Amanye amazwe, anjengePeru, asebenzise le migangatho mibini ngokungafaniyo kwaye ngokuhambelana kwiifom zabo.
Imilinganiselo yephepha laseMelika imi ngolu hlobo lulandelayo: Ileta (216 x 279 mm); Ezomthetho (216 x 356 mm); Umthetho wabaNcinci (127 x 203 mm); Itabloid (279 x 432 mm)
Kwelinye icala, amaJapan awalawulwa yiyo nayiphi na imigaqo esele sithethile ngayo, banetafile yemilinganiselo yamaphepha abo yahluke kakhulu kunangaphambili, kwaye ayisetyenziswanga eYurophu naseMelika:
Ukuba ufuna ukuguqula iifomathi zephepha, ndikucebisa ukuba uye kweli phepha, kunokuba luncedo olukhulu kumaxesha amaninzi, iluncedo kakhulu kwaye ilula, kwaye inokusetyenziselwa ukuguqula ezinye iintlobo zemilinganiselo okanye iimali, yona ineendlela ezininzi onokukhetha kuzo eziluncedo: convertworld.com
iifonti kunye nemifanekiso: incwadi, ubukhulu bephepha, Imibala emine yobomi