Mene ne bambanci tsakanin Lossless da Lossy Compression?
Akwai nau’ikan matse PDF guda biyu, kuma wannan bambancin yana da mahimmanci ga takardun ku.
Lossless compression tana sake tsara tsarin cikin PDF. Tana cire abubuwan da suka ninka, tana ba da damar hanyoyin abu, sannan tana cire bayanan meta da ba a amfani dasu. Fayil ɗin yana yin ƙanƙanta amma kowane pixel yana kasancewa daidai. Kwangilar 12 MB na iya komawa 8 MB ba tare da wani canjin gani ba.
Lossy compression tana sake ɓoye hotuna a inganci mafi ƙasa sannan tana rage ingancin zane-zane. Ƙasidar hotuna mai 15 MB na iya komawa 3 MB. Rubutu yana kasancewa a sarari, amma wasu bayanan hotuna za su ragu - galibi ba a gani a allo, amma wani lokacin ana gani a bugawa.
Daidaiton girman fayil gwargwadon nau’in takarda
Waɗannan mizanai na nuna sakamakon da aka saba samu daga gwajin takardu na gaske:
| Nau’in takarda | Girman asali | Bayan Lossless | Bayan Lossy |
|---|---|---|---|
| Kwangilar rubutu (shafi 20) | 2.4 MB | 1.1 MB (-54%) | 1.0 MB (-58%) |
| Gabatarwa mai jadawali (shafi 30) | 8.5 MB | 5.2 MB (-39%) | 2.8 MB (-67%) |
| Kundin hotuna (hoto 50) | 45 MB | 42 MB (-7%) | 9 MB (-80%) |
| Takarda da aka duba (shafi 10) | 18 MB | 16 MB (-11%) | 4.5 MB (-75%) |
Babban bayani: Lossless compression ta fi aiki a fayiloli masu rubutu. Lossy compression ta fi kyau ga takardu masu hotuna don rage girman fayil da 50-80%.
Me yakamata a yi kafin matse PDF?
Kafin matsewa, ku bi waɗannan matakan. Gyara asalin fayil yana ba da sakamako mafi kyau fiye da kowane kayan aiki.
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