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Indlela yoku-OCR PDF

1 Layisha phezulu i-PDF documents exhunywe; i-300 DPI ehlanzekile ye-greyscale inikeza isibonisi okuningi okusebenzela.

2 Uthi yini ukuthi linguliphi lingu lokulindeleka - ukubiza lingulimi kwenza ukuthi licabanga nge-margin ebanzi.

3 Sebenzisa ukukwazisa okudlulele; amagama abhalwe emuva njengezinga elibonakalayo elihlala phezu kwesithombe sekhasi elisemthethweni.

4 Layisha phezulu ifayela elitholakele PDF — libukeka lifana, kodwa manje ungasesha futhi ukhethe umbhalo kulo.

OCR PDF Imibuzo Evame Ukubuzwa

Yini okufanele ngiyiskena ukuze ngithole imiphumela engcono kakhulu?

300 DPI kugreyscale yindawo emnandi. ngaphansi kuka-200 DPI, izimpawu ziqala ukulahleka; ngaphezu kuka-400 DPI, awutholanga lutho futhi ukhokhe ngesayizi yefayela nesikhathi sokusebenza.

Indlela i OCR PDF iguqula ngayo isikhangiso sibe umbhalo?

Ngokucacile, ikhasi ngalinye libonisa, lihamba nge-Tesseract text-recognition pass ezilimi ezingaphezu kuka-100, futhi amagama aphawulwe abhalwe emuva njenge-text layer engabonakali ebekwe phezu kwesithombe sakuqala — ngakho ikhasi libukeka lishintshiwe kodwa litholakale futhi likhethwa. Ikhasi libukeka ngokugcwele njengoba libukeka — umbhalo owaziwayo uhlala engekho ngemuva kwesithombe, ngakho ukusesha nokukhethwa kusebenza ngaphandle kokushintsha ukubonakala.

Ingabe kukhona okuthile okukhethekile ku PDF lapha?

Yebo — i-PDF iyi-graph yento, hhayi isithombe sekhasi, ngakho umbhalo uhlala ukhethwa futhi ama-vectors ahlala aqinile kungakhathaliseki ukuthi kwenzekani ku-raster content ngaphakathi kwayo. Kuthinta ukuthi yini okwaziyo angabona.

Ingabe ilungile?

Ku-300 DPI ukuhlola okuhlanzekile kwesihloko esiphrintiwe, okuphezulu ngokwanele ukuthi amaphutha avame ukutholakala futhi avame ukutholakala kumagama ajwayelekile. Ukunemba kuhla kakhulu ngesinqumo esiphansi, ukusakazeka, izithunzi kusuka kwikhamera yefoni, amafonti ajwayelekile nokushicilelwa ngesandla — ukushicilelwa ngesandla ngokukhethekile akuyona into enjalo.

Yini engikwazi ukuyifaka ku OCR PDF?

Noma yiziphi i-PDF ezijwayelekile, kufaka phakathi ezikhiqizwa yi-scanner, yi-word processor noma yi-print driver. Amafayela anegama lokungenisa elisemthethweni elivimbela kuphela ukuhlela aphathwa; amafayela adinga igama lomsebenzisi lokungenisa elisemthethweni ukuvulwa aphathwa, futhi asizama ukuphula ukufihla.

Ingabe kunesilinganiselo sobukhulu behele ku OCR PDF?

Yebo: ama-akhawunti amahhala aphatha amadokhumende kuze kube yi 5 MB ngayinye, okubandakanya izixhumanisi eziningi namakontraki kodwa hhayi amadokhumende adlulile axhunywe ku-600 DPI; i-Ghostscript ne-qpdf zenza umsebenzi. I-PDF exhunywe yinto ejwayelekile edlula yona, futhi ukucindezela idokhumende kuqala kulungile ukubuyisela ngezansi.

Ingabe OCR PDF izonciphisa ukhwalithi ye PDF documents yami?

Umbhalo kanye nemisebenzi yezandla ye-vector yizinto ezingaphezu kwama-pixels, ngakho zihlala ziqinile nganoma yisiphi isibonisi noma yini ekwenzekayo. Izithombe ze-raster ezifakwe kuphela ezingakwazi ukuncipha, futhi uma umsebenzi okhethiwe uphinde uphinde uzame.

Ingabe ngizosebenzisa OCR PDF ku PDF documents amaningi ngasikhathi sinye?

Yebo — thumela iset futhi baqhubekela phambili ngokufanayo ngaphansi kweset eyodwa yezinhlelo, okuwukuphela kwento eyenza ukuphuma kwedokhumende lapha ngaphezu kokuchofoza ku-desktop reader.

Kungani i EPUB site i host OCR PDF?

EPUB.to ifakwe evulekile eBook format - XHTML e zip, reflowable ngokudweba, futhi efundeka ku hardware akukho umuntu ocabanga mayelana layout for. Incwadi iyi-zip egcwele i-markup, izithombe nefonti, ngakho-ke cishe yonke imisebenzi abantu abaletha kuwebhusayithi ye-eBook isebenza kakhulu kusinye sezizinto. OCR PDF isebenza ku-upload efanayo ne-akhawunti efanayo njenge-conversions ngoba lapho idingeka khona.

Yini okufanele ngiyenze ngemiphumela uma i OCR PDF iqediwe?

Isiguquli kule ndawo sihamba namabhuku phakathi kwe-EPUB, MOBI, AZW3, PDF ne-DOCX, ngakho-ke isihloko siphele kunoma yisiphi isisetshenziswa esizofunda. Ukwenza lokhu ngemuva kwe OCR PDF kusho ukuthi ukuguqulwa kwenziwa kusuka kuhlobo olusetshenziswe, hhayi kusuka kulowo ongeke uphinde ulungise.

Ingabe OCR PDF lapha ithuluzi elifanayo lezindawo ezifanayo ezisebenza?

Ama-engine ahlukaniswe - i-toolchain efanayo, abasebenzi abafanayo, ama-limits afanayo. Okuthi EPUB site ikhuphule yimbono yokubuyela emuva: iyiphi yalezi misebenzi incwadi ebuyela emuva eqinisweni ixhasa, nokuthi iyiphi kuphela eyenza umbono ku-fixed-layout media ngaphakathi kwayo. Iqala futhi kusuka kuqiniso elinye mayelana nefomethi le site ibizwa ngemuva: incwadi iyi-zip ye-XHTML ene-manifest, ngakho-ke umbhalo ubiza cishe akukho futhi wonke umzamo obalulekile ukhuluma ngezithombe ezifakwe ngaphakathi nefonti eziseduze.

Ngidinga i-akhawunti, futhi yini egcinwa?

Akukho akhawunti, futhi akukho okugcinwa: ukuthunyelwa kususwa abasebenzayo ngemuva komsebenzi oqediwe, akukho okufundwayo futhi akukho okuhlobene. Ama-akhawunti amahhala akhona ngembali nenani leqembu, hhayi ukufinyelela.