Guqula EPUB ukuba JPG

Guqula Eyakho EPUB ukuba JPG uxwebhu

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Indlela yokuguqula EPUB ukuba JPG

Inyathelo 1: Layisha eyakho EPUB iifayile usebenzisa iqhosha elingasentla okanye ngokutsala nokuwisa.

Inyathelo lesi-2: Cofa iqhosha elithi 'Guqula' ukuze uqalise ukuguqula.

Inyathelo lesi-3: Khuphela i-converted yakho JPG iifayile

EPUB ukuba JPG Imibuzo Ebuzwa Rhoqo Ngokuguqula

Yintoni eyenza i-EPUB ukuya kwi-JPG iguquli?

Iguqula ifayili ye EPUB ibe yi JPG. I-JPG yi-JPEG eqhelekileyo ukusukela ngo-1992, inikezelwa phantsi kwe-.jpg,.jpeg kunye ne-.jfif izithuba ezifanayo, kwaye emva kweminyaka emithathu ihlala i-format esetyenziswa ziikhamera ezininzi kunye ne-web sites ezininzi zomfanekiso.

Ingaba isiqalo kunye nombala wokuthembeka kuya kugcinwa?

Akukho EPUB okanye JPG zithwala isiqhagamshelanisi se-alpha, ngoko ke isiqalo sibonisa njengombala oqinileyo kwaye i-pixel ye-data yombala igcinwa ukusuka ekupheleni ukuya ekupheleni.

Ingaba ukuguqulwa kwe-EPUB ukuya kwi-JPG kunokuphinda kuphindeke?

Ungaguqula i-JPG kwakhona kwi-EPUB kule ndawo. Ukuba nayiphi na ifomati ebandakanyiweyo ilahlekile, i-round-trip ayizukuba yi-bit-perfect nakuba ibonakalayo okanye icacile.

Yintoni umgangatho wemveliso endingalindele ukuba ndiyilindele ukusuka kwi-EPUB ukuya kwi-JPG?

Izicwangciso ezimiselweyo zijolise kwi-broadcast / umgangatho we-web - ngokubonakalayo ifana nomcebo kubabukeli abaninzi. Ukusetyenziswa kovimba, khetha ukhetho oluphezulu lomgangatho kwimimiselo yoguquli.

Ingaba incwadi eguqulweyo izakugcina umgqomo wayo, izihloko kunye netheyibhile yezinto eziqulethe?

Ewe apho zombini iifomati zingazichaza. Ubugcisa besiqhoboshelo, iziqalelo zokwahlula kunye netheyibhile e navigable yezinto eziquletheyo zii metadata ezidityanisiweyo, ngoko zihamba ngaphezulu kunokuba ziphathwe kumbhalo. Iinkcukacha ze footnote kunye neengxelo zesalathisi ziinxalenye ezibuthathaka - zihlambuluka kumbhalo ongaphakathi komgca kwinjongo ngaphandle kwendlela ye ankile.

Ingaba i JPG iya kuvula ngokuthe ngqo kwi-browser?

Ewe, kwaye EPUB ayizukuba nayo. Iibrawuzari zithumela i decoder ye JPG kwaye akukho nto ye EPUB, ngoko EPUB uxhulumaniso lubangela ulayisho ezantsi ngelixa JPG ibonisa ngaphakathi komgca. Oku kuqhelekileyo kubangela ugqibo xa ifayile isiya kwiphepha le web kunokuba ifike kwisicelo. I-JPG icinezela imifanekiso ebonakalayo ngokumangalisayo kwaye ifundeka ngazo zonke izixhobo, umkhangeli zincwadi nomshicileli okhoyo.

Iphepha lencwadi ephindayo liguqulwa njani libe yimifanekiso ethe nkqo?

Ngokwenza ngazo kubungakanani bephepha olukhethiweyo kuqala, kuba incwadi ephindayo ayinamaphepha angaphakathi - umfundi uyenza ukusuka kwiscreen ububanzi kunye nobungakanani bomgca. Umguquli ukhetha iphepha eliqhelekileyo lobunzulu bomhlaba, ubeka umbhalo ngaphandle kuyo, kwaye uyenza iphepha ngalinye eliphumayo njengomfanekiso omnye. Tshintsha ubungakanani bephepha kwaye ufumana inani elihlukileyo lemifanekiso kwincwadi efanayo.

Yintoni isicwangciso somgangatho endingayisebenzisa kwi-JPG yemveliso?

Ubunjani 85 bumiselwe ngokungagqibekanga kwaye lusetyenziswa ngaphandle kokuba utshintshe - olubonakalayo olungaqhelekanga kumvelaphi kumgama oqhelekileyo wokubona, malunga neshumi lesihlanu lobungakanani obulinganayo olungenamonakalo. Nqakraza kwi 95 nantoni na ezakuhlela okanye ishicilelwe, kwaye khupha kwi 70 yemifanekiso eqingqiweyo apho ubungakanani bulawula. I-JPG ilahlekile: umfanekiso uguqulwa nge-DCT, i-quantized, kunye ne-entropiya-ekhowudiweyo, ngeqhosha lomgangatho elilawula ukuba kuphi okuninzi okulahlekileyo.

Kutheni le nto ifayili yam EPUB i refuses to convert?

DRM, kwimeko eninzi. I-EPUB ekhuselekileyo ikhowudiwe kwaye idityaniswe kwi-akhawunti, kwaye akukho mguquli unokuyikhupha ikhowudi — i-DRM yethu iquka. Iifayili ozivelise ngokwakho, okanye ozithengise kwi-DRM-free store, ziguqulwe ngaphandle kwengxaki. I-EPUB ayinalo ushicilelo oluthe nkqo, ngoko ke amanani ephepha ayingomsebenzi, kwaye ubeko olunzima - itephu, i-equations, i-multi-column - luyikhupha kakubi.

Ndingaguqula kuphela inxalenye ye EPUB endaweni yobuqu?

Ewe - uluhlu lwephepha lokhetho luthatha `1- 5`, `1,3,5` okanye `zonke`, ngoko isithuba esifanayo, isiqalelo okanye isiqulathi seefayili singasuswa ngaphandle kokusebenzisa isiphelo. Kuxwebhu olude olu lukhetho phakathi kweefayile ezincinci kunye nezigidi ezininzi.

Ingaba kukho umda wobungakanani befayili xa uguqula i-EPUB ibe yi-JPG?

Ulayisho phezulu olungaziwayo luphelelwe lixesha ngokumiselweyo; i-akhawunti ebhalisiweyo ekhululekileyo ifumana umda ophezulu, kwaye i-akhawunti ye-Pro ayinalo umda wefayili nganye. Inkumbulo yesikhangeli sihlala siyimfuneko yothintelo ixesha elide phambi kokuba umda wethu we-server-side uqale.

Ndingaguqula iifayili ezininzi ze-EPUB zibe yi-JPG ngaxeshanye?

Ewe. Nqumle okanye ukhethe iifayile ezininzi ze EPUB kwifayili enye yokulayisha - umguquli uqhubekeka nazo ngokuthe tye kwaye ubuyisele i-ZIP yeziphumo ze JPG. Akukho mfuneko yokuphinda uqhubekeke inkqubo yefayili nganye.