Sinthani EPUB ku PDF

Sichoncho - izi kusintha zimasintha mawonekedwe. A EPUB imasintha masamba ake kuti akwaniritse kukula kwa masamba ndi kukula kwa font yomwe wowerenga akugwiritsa ntchito; PDF imasintha masamba a geometric nthawi yosintha, kotero pafoni mumapeza tsamba lonse lochepetsedwa kuposa masamba omwe amasinthidwa ku skrini. Izi ndi malonda abwino pamene mawonekedwe sayenera kusinthidwa, ndipo opanda pake pamene fayilo ndi yowerenga pa chipangizo chazing'ono. EPUB reflows malemba kwa chilichonse kukula chophimba ndi chilichonse font kukula, amene ndi zimene zimachititsa kuti owerenga pa foni monga e-m'badwo. PDF ndi Adobe's Portable Document Format kuchokera 1993, standardized monga ISO 32000 ndi pano universal fixed-layout wapamwamba.

Yes, pamene onse awiri mafomu angawafotokozere. Cover art, Chapter divisions ndi navigable table of contents ndi zomanga metadata, choncho amapita mozungulira kuposa kukhala flattened mu malemba. Footnotes ndi index entries ndi zosalimba mbali — iwo amalowetsa mu inline malemba pa zolinga popanda ankare njira.

Ndikukhulupirira kuti ndinu woyenera, ndipo EPUB siyidzakhala. Mawebusayiti amatumiza decoder kwa PDF ndipo palibe kwa EPUB, choncho EPUB kulumikizana kumalepheretsa kutsitsa pomwe PDF imapanga inline. Izi ndizofala kwambiri pamene fayilo ikupita patsamba la webusaitiyi kuposa ku pulogalamu. PDF ikuwoneka ngati byte-by-byte yofanana pa makina onse ndi ma printa onse, chifukwa chake ma kontrakitala, ma invoice ndi mabuku a akatswiri onse amakhalamo.

DRM, m'mavuto ambiri. A protected EPUB ndi encrypted ndi kugwirizana ndi akaunti, ndipo palibe wosintha akhoza decrypt it - wathu anaphatikizapo. Fayilo inu mwapanga nokha, kapena anagula kuchokera DRM-free shopu, kusintha popanda mavuto onse. EPUB alibe fixed pagination, kotero masamba mitengo ndi zosatanthauza, ndi zovuta layout - tambala, malingana, multi-kolondola - degrades bwinobwino.

Zimatengera kuti pali mawu a m’bukuli. PDF yopangidwa kuchokera ku fayilo imagwiritsa ntchito malemba ochokera m’bukuli ndipo imatha kufunidwa. PDF yopangidwa kuchokera ku scans kapena zithunzi ndi chithunzi cha malemba koma sichingakhalepo mpaka OCR iwonjezere malemba. /pdf-ocr/ imapangitsa kuti izi zitheke, ndipo ndi bwino kuyendetsa pulogalamuyi panthawi yosintha yomwe imayembekezera kuwerenga mawu.

Yes — zosankha zowonjezera zimasonyeza kukula kwa tsamba (A4, A5, kalata, 6×9 trade paperback, zosiyanasiyana), zosankha za maziko (zofupi / zoyenera / zosaoneka), ndi kukula kwa font. A5 + 11pt ndi mtundu wa e-wowerenga wotchuka; 6×9 + 11pt umagwirizana ndi mabuku ambiri osindikizidwa.

Ndikofunika - mafonti a EPUB OPF amawerengedwa ndi kuphatikizidwa ngati subsets a PDF font mu PDF, kotero zotsatira zimawoneka mofanana pa aliyense woonera PDF. Ngati EPUB amagwiritsa ntchito mafonti popanda kukhazikitsa chilolezo, timangosintha chilolezo chosadziwika (DejaVu Serif / Sans).

Ndikoyenera - NCX / nav kuchokera ku EPUB imasinthidwa kukhala mabuku a PDF (pambali pa paneli ya Acrobat / Preview) ndi maulalo ophatikizika omwe angagwiritsidwe ntchito patsamba la TOC la PDF.

Zithunzi m'EPUB zimaikidwa ndi chiwonetsero chawo chazithunzi. Utali umalumikizidwa ndi chigawo cha mawu PDF; zithunzi zochuluka kuposa bokosi zimachepetsedwa kuti zikhale zokwanira. Chosankha cha "chikhalidwe cha chithunzi" chimawongolera chikhalidwe chosintha (95 = chigawo chosunga, 75 = cholimba).

Kuti musindikize zinthu zamalonda, dinani pa 300 DPI / CMYK / no-bleed. Chithunzi cha PDF chimakonzedwa kuti chikhale choyenera kusindikiza (RGB, 150 DPI), chomwe chimagwira ntchito bwino pa laser yanyumba koma chimagwira ntchito bwino pa offset / digito.

Chapter-start "always-on-right-page" CSS mu EPUB imayambitsa masamba oyera a verso, monga mabuku osindikizidwa. Sungani "force chapter start on odd page" kuchotsa iwo; musinthana ndi masamba angapo a masamba a PDF.