Kwinqaku elilandelayo siza kujonga kwi-pdftoppm. Esi sisimahla kunye nomthombo wokuyalela osetyenziswayo kwi-Gnu / Linux. Ngayo unako ukuvelisa ngokulula iifayile zemifanekiso kuxwebhu lwePDF. Iya kusivumela ukuba siqwalasele ifomathi yefayile kunye nobukhulu bemifanekiso ekhutshiweyo, phakathi kwezinye izinto. Siza kufumana esi sixhobo kwiphakheji izixhobo ezisetyenziswayo.
Ukuba njengomsebenzisi ufumanisa ukuba ufuna ukugcina iphepha elithile lefayile yoxwebhu njengomfanekiso, ukuyisebenzisa njengesalathiso kamva. Nge-pdftoppm eluncedo, iifayile zomfanekiso zinokuveliswa ngokulula kakhulu kuxwebhu lwePDF, usebenzisa umyalelo omnye kwisiphelo sendlela.
I-Pdftoppm ayivumeli kuphela Guqula iPDF Kwiifayile zemifanekiso, iya kuthi isinike ithuba lokukhetha ifomathi kunye nobukhulu bemifanekiso ekufuneka yenziwe, sinokudibanisa umbala wokucoca ulwelo. Phakathi kweefomati zemifanekiso yokuguqula esi sixhobo esivumayo, sinokufumana; I-PNG, JPEG, JPEGCMYK, JPEGOPT kunye neTIFF.
Faka i-pdftoppm Ubuntu
Njengoko benditshilo ngaphambili, esi sixhobo sikwi poppler-utils package. Ukuba awunayo le phakheji esele ifakiwe kwinkqubo yakho Ubuntu, ungavula i-terminal (Ctrl + Alt + T) kwaye usebenzise iskripthi esilandelayo qhubeka nofakelo:
sudo apt update; sudo apt install poppler-utils
Uguqula njani iifayile zePDF kwimifanekiso
I-Pdftoppm ibonelela ngeendlela ezininzi zokusetyenziswa, kodwa ezona zixhaphakileyo zezi; Guqula iphepha lokuqala le-PDF libe ngumfanekiso, uguqule yonke i-PDF uyenze imifanekiso, utshintshe ifomathi yomfanekiso, uguqule kuphela iphepha elithile le-pdf, kwaye utshintshe isisombululo somfanekiso osisiphumo.
Unokuguqula iPDF ibe yimifanekiso usebenzisa is syntax:
pdftoppm -formato documento nombre-imagen
- ifomathi → lulwandiso lwefayile yemveliso.
- uxwebhu → yindlela eya kwifayile yePDF esiza kuyiguqula.
- igama lomfanekiso → ligama lomfanekiso wokuphuma.
Guqula iphepha lokuqala le-PDF libe ngumfanekiso
ukuba Guqula iphepha lokuqala lefayile yePDF ibe ngumfanekiso we-png, enkosi kukhetho -f y -l, kuya kufuneka sisebenzise kuphela umyalelo ngolu hlobo lulandelayo:
pdftoppm -png -f 1 -l 1 ejemplo.pdf ImagenPrimeraPagina
Guqula i-PDF iphela ibe yimifanekiso
Umyalelo olandelayo uya Guqula iphepha elipheleleyo lePDF ngephepha .png. Ukuba uxwebhu lunamaphepha amaninzi, i-pdftoppm iya kongeza amanani kwigama lefayile, (iphe. Umzekelo, umfanekiso-1.png kunye nomfanekiso-2.pngngelixa ujonga iifayile zemifanekiso.
pdftoppm -png ejemplo.pdf imagen
Chaza uluhlu lwamaphepha e-pdf ukuguqula ube yimifanekiso
Ngokukhetha -f y -l ebesiyisebenzise kumzekelo wokuqala, sinako nathi Chaza uluhlu olubanzi lwamaphepha kwifayile yePDF ukuguqula ibe yimifanekiso. Kumzekelo olandelayo siza kudlula kuluhlu ukusuka ku-2 kuye ku-5, ukuguqula ukusuka kwiphepha ezimbini ukuya kwelisihlanu ukuya kwimifanekiso, zombini zibandakanyiwe.
pdftoppm -png -f 2 -l 5 ejemplo.pdf imagen
Guqula umgangatho wemifanekiso ekhutshiweyo
Ngokukhetha -rx y -ry isisombululo sinokuguqulwa dpi yemifanekiso ekufuneka yenziwe. Ngokuzenzekelayo, isixhobo se-pdftoppm sivelisa imifanekiso ephume kunye nesisombululo se 150 dpi, Kwaye kulo mzekelo siza kuyithoba kwi-75 dpi.
pdftoppm -png -rx 75 -ry 75 ejemplo.pdf imagen
Lungisa imibala yemifanekiso ekhutshiweyo
Esi sixhobo siza kusivumela ukuba songeze iifilitha zemibala kwimifanekiso ekhutshiweyo. Ngokulula Kuya kufuneka sibuyisele ifomathi yomfanekiso ngegama lefayile. Ungaguqula iPDF ibe yimifanekiso emnyama ngokongeza ukhetho -ngwevu. Ifayile evelisiweyo iya kuba nolwandiso lwe-PGM.
pdftoppm -gray ejemplo.pdf imagen
Uncedo
ukuba Fumana iinkcukacha ezizeleyo ngendlela yokusebenzisa esi sixhobo, abasebenzisi banokubhenela kuncedo ekunokuthi kuboniswane ngalo nomyalelo:
pdftoppm --help
Inokuba njalo dibana ne- amaphepha omntu ngomyalelo:
man pdftoppm
I-Pdftoppm sisixhobo esithembekileyo ukuba unomdla wokuguqula uxwebhu lwePDF lube yimifanekiso. Izixhobo zinikezela ngolawulo kuqwalaselo lolwandiso, igama kunye nesisombululo somfanekiso osisiphumo, usebenzisa umyalelo omnye kwisiphelo.