Yadda zaka canza PDFs zuwa DJVU

Djvu (lafazin deja-vu) sigar fayil ɗin kwamfuta ce da aka tsara da farko don adana hotunan da aka sikantasu. Yana da halin haɗakar da fasahohi masu haɓaka irin su rarrabuwa mai ɗaukar hoto, ɗora Kwatancen ci gaba, ƙididdigar lissafi da matsewar asara don hotunan bidiyo (launuka biyu), ba da damar adana hotuna masu inganci a cikin mafi ƙarancin sarari.


Uploadaddamar da ci gaba (ko zazzagewa) yana sanya fasali mai kyau don hotunan da ake amfani dasu daga Intanet. An inganta Djvu a matsayin madadin PDF, kuma a yau ya fi wannan tsari tsari a cikin yawancin takardu da aka leka. Wannan ya haifar da amfani da shi sosai wajen rarraba littattafan lissafi akan hanyoyin sadarwar fayil (Emule, Bittorrent, da sauransu). Kamar PDF, Djvu na iya ƙunsar layin rubutu da aka samo ta hanyar aikin OCR (Gano Hannun Tantancewar Haraji), yana mai sauƙin kwafa da liƙa cikin wasu takardu.

Fasaha ta DjVu ta samo asali ne daga Yann Le Cun, Léon Bottou, Patrick Haffner, da Paul G. Howard a AT&T Labs a 1996. DjVu sigar buɗe fayil ce. An buga lambar tushe da takamaiman tsari don laburaren tunani kuma akwai. Mallaka haƙƙoƙin ci gaban kasuwanci na software mai ba da umarnin an sauya shi zuwa kamfanoni daban-daban a tsawon shekaru, gami da AT&T da LizardTech. Mawallafan asali suna kula da aiwatar da GPL da ake kira DjVuLibre.

Kwatantawa da PDF

Babban banbanci tsakanin DjVu da PDF shine na farkon shine tsarin zane-zanen raster, yayin da na karshen shine tsarin zane-zanen vector. Wannan yana nuna sakamakon da ke zuwa:

Matsakaicin ƙuduri na fayil na DjVu an riga an saita (wanda aka ƙayyade lokacin ƙirƙirar shi). Sabanin haka, za a iya fadada ko rage fayil ɗin PDF bisa son kai, muddin hoton asalin yana cikin tsarin vector (hotunan da aka yi ba), ba tare da rasa ingancinsu ba.

Haruffa a cikin fayil na DjVu hotuna ne, baya amfani da rubutu. PDF yana amfani da rubutu, wanda bazai iya zuwa cikin fakitin ba, don haka idan ba'a same su a cikin tsarin ba, ana amfani da wani wanda yake akwai.

Tsarin PDF yana ba da hanyoyi daban-daban don haɗawa da gabatar da hotunan raster, waɗanda galibi ake amfani da su don ƙirƙirar fayiloli tare da takaddun sikanin. Waɗannan fayilolin suna da gazawa iri ɗaya kamar fayilolin DjVu.

Idan inganci ne wanda ya shafe ku, IMHO DJVUs sun fi kyau. Komai yayi kyau sosai. Idan, a gefe guda, kuna buƙatar sarari akan diski, ku zauna da kyau: yayin canza pdfs djvus na, a matsakaita, na biyun ya ɗauki sau 3 ƙasa da tsohuwar pdfs ɗin.

Sanya PDFs dinka zuwa DJVU

Yin wannan baƙon abu ne. Muna sauƙaƙe shigar pdf2djvu:

sudo apt-samun shigar pdf2djvu

Bayan haka, don amfani da shi, muna aiwatar da:

pdf2djvu fayil.pdf -o file.djvu

Don wannan yayi aiki, kar a manta maye gurbin file.pdf da file.djvu tare da hanyoyin fayilolin da suka dace.

Duba DJVU

Ubuntu tuni ya fito "daga akwatin" tare da ikon duba DJVUs. Don yin wannan, yi amfani da shirin iri ɗaya don na PDFs: Evince. Don haka, a wannan ma'anar, muna da sauƙi.

Dangane da tsokaci da aka yi mani a wani saƙon, zaku iya zaɓar rubutu a cikin DJVU. Kamar PDFs, idan takaddar ta kasance OCRed (ko kuma idan an juya fayil ɗin rubutu zuwa wancan tsarin) to yana iya.

Matsalar ita ce saboda kuskure a cikin Evince (duba kwaro y sharhi), shirin da Ubuntu yake bude mana PDFs da DJVUs da tsoho, ba za a iya yin wannan aikin ba.

Don magance wannan matsalar, zamu iya shigar da DjView, wani ɗan ƙaramin shiri don ganin DJVUs.

sudo apt-samun shigar djview4

Da zarar an girka, zaka same shi a cikin Zane-zane> DJView.

Wasu hanyoyin haɗin yanar gizo waɗanda zasu iya ba ku sha'awa:


10 comments, bar naka

Bar tsokaci

Your email address ba za a buga. Bukata filayen suna alama da *

*

*

  1. Wanda ke da alhakin bayanan: Miguel Ángel Gatón
  2. Manufar bayanan: Sarrafa SPAM, sarrafa sharhi.
  3. Halacci: Yarda da yarda
  4. Sadarwar bayanan: Ba za a sanar da wasu bayanan ga wasu kamfanoni ba sai ta hanyar wajibcin doka.
  5. Ajiye bayanai: Bayanin yanar gizo wanda Occentus Networks (EU) suka dauki nauyi
  6. Hakkoki: A kowane lokaci zaka iyakance, dawo da share bayanan ka.

  1.   Helena_ryuu m

    Na gode sosai saboda bayanan da turanci> w

  2.   Bari muyi amfani da Linux m

    Helena: Abin da kuke son yi shi ake kira "ƙirar hoto" (wato, shirya hotuna da yawa a lokaci guda). Akwai hanyoyi da yawa don yin hakan akan Linux. Wataƙila mafi amfani shine amfani da nautilus-mai sauya-hoto ko kuma phatch. Dukansu suna cikin wuraren ajiya na Ubuntu. Na farko zai baka damar shirya hotunan daga Nautilus (google shi, tabbas zaka sami koyarwa da yawa). Phatch, a gefe guda, ƙaramin shiri ne mai zaman kansa wanda shine, a ganina, yafi ƙarfi (yana ba ku damar yin abubuwa da yawa).
    Da zarar kun shirya duk hotunan, zaku iya amfani da hoto don canza su zuwa pdf (misali, saka duka a cikin pdf guda 1). Don yin wannan, Ina ba da shawarar ka karanta wannan sakon: https://blog.desdelinux.net/como-manipular-imagenes-desde-el-terminal/ Idan kuna buƙatar ƙarin taimako, ku sanar da ni ... in ba haka ba sharhin ya sa ni tsayi sosai.
    Murna! Bulus.

  3.   Bari muyi amfani da Linux m

    Helena: Abin da kuke son yi shi ake kira "ƙirar hoto" (wato, shirya hotuna da yawa a lokaci guda). Akwai hanyoyi da yawa don yin hakan akan Linux. Wataƙila mafi amfani shine amfani da nautilus-mai sauya-hoto ko kuma phatch. Dukansu suna cikin wuraren ajiya na Ubuntu. Na farko zai baka damar shirya hotunan daga Nautilus (google shi, tabbas zaka sami koyarwa da yawa). Phatch, a gefe guda, ƙaramin shiri ne mai zaman kansa wanda shine, a ganina, yafi ƙarfi (yana ba ku damar yin abubuwa da yawa).
    Da zarar kun shirya duk hotunan, zaku iya amfani da hoto don canza su zuwa pdf (misali, saka duka a cikin pdf guda 1). Don yin wannan, Ina ba da shawarar ka karanta wannan sakon: https://blog.desdelinux.net/como-manipular-imagenes-desde-el-terminal/ Idan kuna buƙatar ƙarin taimako, ku sanar da ni ... in ba haka ba sharhin ya sa ni tsayi sosai.
    Murna! Bulus.

  4.   Helena_ryuu m

    Shin kun san yadda zan iya ƙirƙirar fayilolin djvu kai tsaye daga hotunan da aka zana?

  5.   Bari muyi amfani da Linux m

    Sannu Helena! Ina ba ku shawara ku karanta labarin mai zuwa: http://www.howtoforge.com/creating_djvu_documents_on_linux
    Tabbas, yana cikin Turanci, amma ina tsammanin abu ne mai sauƙin fahimta.
    Murna! Bulus.

  6.   Helena_ryuu m

    da kyau, na riga nayi pdf tare da imagemagik (mai sauqi qwarai; D) kuma ina matuqar jin daxin taimakonku, sosai na mai da hankali> w <, as postcript, I use archlinux with xfce, and the Phatch is great, I amfani da gimp don ƙananan ayyuka kamar yankan hotuna ._., ....
    Koyaya, dubun godiya don taimakonku! ^^

  7.   Bari muyi amfani da Linux m

    Ina murna!
    Rungumewa! Bulus.

  8.   Juan Camilo m

    Gracias

  9.   ciyawa m

    ban mamaki…. Godiya mai yawa!

  10.   raster m

    godiya mai ban sha'awa