Isihlukanisi Sekhasi le-PDF Lombala na-Mnyama Nokumhlophe - FAQ & Tech Guide

Ukutholwa Kombala Wekhasi & Ukushuna Kahle

Kungani amanye amakhasi askaniwe amnyama nokumhlophe ebonakala njengamakhasi ombala? Ungakulungisa kanjani lokhu?

Lokhu kungenxa yokuthi amakhasi amaningi we-PDF askanwe ngeskena sangempela noma ngekhamera yomakhalekhukhwini abukeka emnyama namhlophe ngokubukwayo kodwa aqukethe ukuphambuka kombala okuncane ezingeni le-pixel (isib. umbala ophuzi noma umsindo wombala owenziwe yikhamera/izinzwa zeskena). Ngokuzenzakalelayo, ithuluzi lethu lizwela kakhulu futhi lingase lahlulele lokhu kuhlukahluka okuncane njengama-pixel ombala.

Isixazululo: Ngaphambi kokulayisha amadokhumenti, ungakhuphula "Pixel Saturation Threshold" (isib. kusuka kokuzenzakalelayo okungu-20 kuya ku-30 noma 40). Lokhu kuyala uhlelo ukuthi lunganaki umsindo wombala omncane futhi luthone kuphela izindawo zombala ezihlanzeke kakhulu njengama-pixel ombala. Ungakhuphula kancane "Umkhawulo wesilinganiso se-pixel yombala" ukuze uhlunge ukushintsha kombala kwendawo encane. Ukuze uthole imininingwane, bheka Umhlahlandlela Wesinyathelo & Incwadi Yokonga Imali.

Ingabe ngidinga ukulayisha kabusha ifayela lami ngemva kokushintsha imikhawulo noma amapharamitha wesilinganiso?

Cha. Izilungiselelo vizovusa izindlela zokusabela ezihlukene:

• Uma ulungisa "Umkhawulo wesilinganiso se-pixel yombala", ithuluzi alidingi ukulayisha kabusha i-PDF ngoba selivele lilondoloze isilinganiso se-pixel yombala wekhasi ngalinye. Uhlu nezibalo zekhasi zizoba nokubalwa kabusha futhi zivuselelwe khona manje.
• Uma ulungisa "Pixel Saturation Threshold", amaphikseli ekhasi adinga ukusampulwa kabusha. Noma kunjalo, awudingi ukulayisha kabusha ifayela lakho. Mane uchofoze inkinobho ephuzi ethi "🔄 Phinda Uthole Imibala" phezulu ukuze uhlole kabusha amakhasi enkumbulweni.

Ukuvumelana & Ukusebenza

Ingabe ithuluzi liyawasekela womabili ama-PDF wombhalo woqobo nama-PDF wesithombe askaniwe? Uyini umehluko?

Yebo, womabili asekelwa ngokugcwele. Ithuluzi lethu lihambisana nazo zombili izinhlobo ezijwayelekile ze-PDF:

• Kumafayili we-PDF wombhalo woqobo (athunyelwe kusuka ku-Word, Excel, njll.), amakhasi aqukethe amafonti we-vector ahlanzekile. Ukutholwa kushesha kakhulu, kunembe kakhulu, futhi akuvamile ukubangela ukwahlulela okungeyikho.
• Kumafayili we-PDF wesithombe askaniwe (amakhophi noma izincwadi zezithombe ezihlanganisiwe), okuqukethwe kuqukethe idatha yesithombe engavuthiwe. Ithuluzi lihlinzeka nge-canvas yokuhlaziya enokulungiswa okuphansi futhi lisebenzise ama-algorithm omehluko we-pixel. Ngokulungisa imikhawulo yokugcwalisa umbala, amadokhumenti askaniwe nawo angahlukaniswa ngokunemba okukhulu.

Ingabe isiphequluli sizophenduka isithiyo, sibe yiqhwa, noma siphelelwe inkumbulo lapho kucutshungulwa amafayela e-PDF amakhulu kakhulu?

Ukucubungula amafayela e-PDF amakhulu kakhulu anezithombe eziningi zokulungiswa okuphezulu kungadla imemori yohlelo eningi lapho unikeza futhi ubhala izithombe ze-Canvas (usebenzisa ama-URL e-Data). Ukuze ugweme lokhu, sithuthukise iswishi ethi "Bonisa Ukubuka Kuqala Kwekhasi (Izithonjana)".

Kumafayili we-PDF amakhulu anamakhasi angamakhulu, sincoma kakhulu ukuthi uvale iswishi ethi "Bonisa Ukubuka Kuqala Kwekhasi". Uma isivaliwe, uhlelo lweqa ukukhiqizwa kwesithonjana nesishintsho sedatha ngesikhathi sokuhlaziywa kombala. Lokhu konga amakhulu wamamegabhayithi e-RAM yesiphequluli, kukhulise isivinini ngaphezu kwe-10%, futhi kuvimbele ukuphahlazeka kwethebhu okuhlobene nenkumbulo. Lapho ugcina, i-algorithm yokuhlukanisa yasemuva isakhipha futhi ihlanganise amakhasi alungile, ngaphandle kokuthinta ikhwalithi ye-PDF yomphumela.

Ukuphepha Kwefayela & Ubumfihlo

Ingabe inkontileka yami eyimfihlo, i-invoyisi, noma idokhumenti yokubhida iphephile? Ingabe izolayishwa?

Kuphephile ngo-100%. Leli khasi lisebenza ngokuphelele kubuchwepheshe bewebhu basendaweni. Ukulayishwa kwedokhumenti, ukutholwa kombala, ukunikezwa kokubuka kuqala, nokuhlukanisa/ukuhlanganisa kwenziwa ngaphakathi kwebhokisi lesanti lesiphequluli sakho. Ayikho idatha yefayela elayishwa kunoma iyiphi iseva.

Ngenxa yokuthi inqubo isendaweni ngokuphelele, ithuluzi lisebenza kahle ngisho ungaxhunyiwe ku-inthanethi ngaphandle kwanoma yiluphi uxhumano lwe-inthanethi. Izinkontileka zakho ezibucayi namadokhumenti ezezimali awasoze adalulwa.