Cov txheej txheem:
Video: Dab tsi yog luam tawm li PDF hauv tus saib?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Tam sim no thaum koj nyem rau ntawm a PDF nyob rau hauv pab pawg nws qhia nws nyob rau hauv pab pawg 'built-in PDF saib - tab sis muaj nooption rau luam tawm los ntawm no. Rau luam tawm koj yuav tsum download tau cov ntaub ntawv thiab qhib nws nyob rau hauv ib tug sab nraud PDF saib daim ntawv thov lossis nyem 'qhib online' thiab luam tawm nws los ntawm koj tus browser.
Tsis tas li ntawd, luam PDF txhais li cas?
Vim PDF kev txhawb nqa yog tsim txoj cai rau hauv kev ua haujlwm, OS X's luam ntawv system muab kev siv lub peev xwm rau " luam tawm "ib cov ntaub ntawv ncaj qha rau PDF . Hauv kev xyaum, qhov no txhais tau tias tias ib qho kev thov uas txhawb nqa luam ntawv muaj peev xwm tsim tau a PDF cov ntaub ntawv uas tuaj yeem khaws cia, e-mailed, lossis faxed rau tus neeg thib peb.
Kuj Paub, Kuv yuav luam cov ntaub ntawv PDF ua ke li cas? Piv txwv li, luam tawm cov ntaub ntawv PDF hauv ib daim nplaub tshev:
- Ntaus *. PDF nyob rau hauv lub thawv Nrhiav nyob rau sab xis.
- Rau 1-15 cov ntaub ntawv, nias CTRL + A los xaiv tag nrho lawv.
- Rau 16 lossis ntau cov ntaub ntawv, xaiv 15 ntawm lawv (nias thawj zaug, SHIFT + nyem qhov kawg).
- Txoj cai-nias txhua cov ntaub ntawv thiab nyem Sau.
- Rov ua cov kauj ruam 3-4 raws li xav tau.
Raws li txoj cai, kuv yuav ua li cas loj cov ntawv ntawm PDF rau luam ntawv?
Acrobat tuaj yeem loj cov nplooj ntawv ntawm PDF kom haum rau cov ntawv xaiv loj
- Xaiv Cov Ntaub Ntawv> Luam Ntawv.
- Los ntawm Nplooj Ntawv Scaling pop-up cov ntawv qhia zaub mov, xaiv ib qho ntawm cov kev xaiv hauv qab no: Haum rau Luam Ntawv Thaj Chaw Ntsuas cov nplooj ntawv me me thiab cov nplooj ntawv loj hauv qab kom haum rau daim ntawv.
- Nyem OK los yog Sau.
Vim li cas kuv thiaj tsis luam kuv PDF?
Rov tsim dua PDF file Qhib cov ntaub ntawv hauv qhov program qub (xws li wordprocessing lossis nplooj ntawv layout program). Xaiv Cov Ntaub Ntawv> Luam tawm , thiab tom qab ntawd xaiv qhov kev xaiv kom txuag tau cov ntaub ntawv raws li a PDF . Qhib qhov tshiab PDF , thiab sim luam ntawv dua.
Pom zoo:
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Dab tsi ntawm algorithms xav kom tus neeg xa khoom thiab tus neeg txais kev sib pauv pauv tus yuam sij zais cia uas siv los xyuas kom tsis pub leej twg paub cov lus? Kev piav qhia: Symmetrical algorithms siv tib tus yuam sij, tus yuam sij zais cia, los encrypt thiab decrypt cov ntaub ntawv. Tus yuam sij no yuav tsum tau muab qhia ua ntej ua ntej kev sib txuas lus tuaj yeem tshwm sim
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