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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.

I-PDF ye-OCR Imibuzo Evame Ukubuzwa

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.

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.

Iyini ulwimi oluzokwazi ukuwaqonda?

Kungaphezu kuka-100, kufaka phakathi isiLatini, isiCyrillic, isiGreki, isiArabhu, isiHebhere, isiChinese, isiJapane, isiKorea kanye ne-Indian scripts. Ukutshela ukuthi iyiphi ulwimi olindele ukulisebenzisa kuthuthukisa ukuthembeka ngaphezu kokushiya ukucabanga.

Ingabe OCR PDF ibiza noma yini?

No. OCR PDF ikhululekile ngaphandle kwe-akhawunti, futhi akukho okuthunyelwe kumakhasi. Amadokhumende alayishwe phezulu asuswa kubasebenzi ngemuva komsebenzi oqediwe.

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 aphathwanga, futhi asizama ukuphula ukufihla.

Ingabe kunesilinganiselo sobukhulu behele ku OCR PDF?

Yebo: ama-akhawunti amahhala aphatha amadokhumende kuze kube yi 25 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 amabhukwana, amakhonkco namafomu ahlala?

Izinhlamvu, izixhumanisi zangaphakathi kanye neziphawulo zigcinwa lapho umsebenzi uvumela khona. Izinhlamvu zedijithali ziyisinqumo: noma yikuphi ushintsho kwifayela kudinga ukuvimbela isiphawulo, ngoba lokho kulungile ukuthi yini isiphawulo.

Kungani i MP3 site i host OCR PDF?

MP3.to ifakwe ngaphansi kwefomethi eyenza umsindo ophathekayo ojwayelekile: odlalayo emhlabeni wonke, omncane ngokwanele ukukhohlwa, nolahlekile ngendlela ebalulekile uma uqhubeka nokuphinda uyikhode. Uhlu lwemisebenzi yomsindo: umuntu ofanayo odinga ifomu elisha uvame ukudinga ihele elicushiwe, elihlanganiswayo noma elincane eqenjini elifanayo. Ukubeka OCR PDF ngemuva kokufaka okufanayo, amacaps afanayo ne-akhawunti efanayo yilokho okushintsha ama-tabs amathathu abe eyodwa.

Yini okufanele ngiyenze ngemiphumela uma i OCR PDF iqediwe?

Isiguquli kule site sihamba ngesandi phakathi kwe MP3, WAV, FLAC, M4A, OGG ne Opus, ngakho ifomu lokuphuma liyisinqumo ongashiya kuze kube yilapho kuqediwe, hhayi ukuqhubeka ngaleso sikhathi. Ukwenza lokhu ngemuva kwe OCR PDF ngaphezu kokungaphambili kusho ukuthi ukukopela kwenziwa kabili, kuhele owaziyo, endaweni yezikhathi ezimbili.

Ingabe OCR PDF lapha ithuluzi elifanayo lezindawo ezifanayo ezisebenza?

Ama-engine ahlukaniswe - i-ffmpeg efana ne-build, abasebenza nabo, ama-limits afana. Okushiwo yi-MP3 site kuyinkomba ye-bitrates, mayelana nokuthi yini egcina i-encoding kanye nokuthi yikuphi lapho i-lossless intermediate ifanele uku-upload isikhathi. Kuqala futhi kusuka kuqiniso elinye mayelana nefomethi le site ibizwa ngemuva: Amafreyimu we-MP3 ayizingxenye ezincane eziqinile, ngakho ukucisha kuwela emgwaqweni wefreyimu futhi ama-gapless playback markers angeke aphile uma kuphinde ku-code.

Ngidinga i-akhawunti, futhi yini egcinwa?

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