Qinisekisa isiginesha ye-PDF
Bona yonke isiginesha yedijithali ku-PDF – ubani oyisayinile, nini, ukuthi ayiphazamisekile yini nokuthi idokhumenti yashintshwa yini ngemva kokusayinwa. Ama-PDF angasayiniwe athola izinkomba zokuhlelwa kamuva.
Indlela okusebenza ngayo
Faka i-PDF esayiniwe
Kufika ku-10 MB namakhasi angu-200. Ukuhlola kuqala ngokwakho; ifayela lifundwa enkumbulweni futhi aligcinwa.
Funda umphumela
Okuluhlaza: wonke amasiginesha awaphazamisekile futhi akukho okushintshwe ngemva kokusayinwa. Okubomvu: okuqukethwe okusayiniwe kwaguqulwa noma kwashintshwa kamuva.
Bheka isiginesha ngayinye
Ubani osayinile, umkhiphi wesitifiketi, isikhathi sokusayina, isitembu sesikhathi, izinga le-PAdES nokwenzeka ngemva kokusayinwa.
Dawuniloda umbiko
I-PDF enomphumela ongayigcina nenkontileka noma uyithumele kolunye uhlangothi.
Thumela izinkontileka ezizifakazelayo
Isiginesha ye-elekthronikhi ye-HelpRange ivala i-PDF eqediwe ngesiginesha yedijithali ye-PAdES – noma yiluphi ushintsho lwakamuva luyayiphula – futhi yengeze umlando wokuhlola nesitifiketi sokuqedwa: ubani osayinile, nini futhi esephi, ngemva kokuqinisekisa ikhodi yesikhathi esisodwa evela ku-imeyili yakhe.
I-PDF esayiniwe ingavulwa, ihlelwe futhi iphinde igcinwe – bese isiginesha ingasakumbozi lokho okubonayo. Ngaphambi kokuthi uthembele enkontilekeni esayiniwe, esitifiketini noma ku-invoyisi, hlola ukuthi amasiginesha awaphazamisekile nokuthi akukho okushintshile ngemva kwesokugcina.
Lokho isiginesha yedijithali ekufakazelayo – nalokho engakufakazeli
Isiginesha yedijithali ku-PDF iwuphawu lomunwe lokuqukethwe kwefayela, olubethelwe ngokhiye oyimfihlo wosayinayo. Uma noma ubani eshintsha ngisho i-byte eyodwa yalokho okusayiniwe, uphawu lomunwe aluphinde luhambisane, futhi isiginesha iyaphuka. Nokho i-PDF ingashintshwa ngemva kokusayinwa ngaphandle kokuphula isiginesha, ngoba izinhlelo zokuhlela zengeza izinguquko ekugcineni kwefayela – yingakho lokhu kuhlola kubheka nakho konke okwengezwe ngemva kwesiginesha ngayinye, futhi kukutshele ukuthi bekuyidatha yokuqinisekisa kuphela, ukugcwalisa amafomu namazwana, noma izinguquko zangempela zokuqukethwe.
Isiginesha ifakazela ukuthi okuqukethwe akushintshiwe. Ukuthi umuntu oshiwo esitifiketini usayine ngempela kuncike ekutheni ubani owakhipha isitifiketi. I-Acrobat ikuhlola lokho ku-Adobe Approved Trust List nasezinhlwini ezithembekile ze-EU; leli thuluzi lamahhala alikwenzi lokho, futhi likusho ngokusobala esikhundleni sokubiza isiginesha ngokuthi “ivumelekile”. Isitifiketi esizisayinile singaba nanoma yiliphi igama.
Ama-PDF angasayiniwe: izinkomba zokuhlelwa
- Ukugcinwa kamuva – ifayela laphinde lagcinwa ngemva kokudalwa kwalo; ukubuyekezwa kwangaphambili okunombhalo ohlukile kuwuphawu oluqinile lokuthi othile ushintshe amazwi.
- Izinsuku nezinhlelo – usuku lokushintshwa olude kakhulu ngemva kosuku lokudalwa, noma isihleli se-PDF njengohlelo lokugcina, kusho ukuthi ifayela lavulwa laphinde lagcinwa.
- Ukufihla – umbhalo ongaphansi kwamabhokisi amnyama noma umbhalo omhlophe, otholwa futhi ukuhlolwa kokuphepha kwe-PDF.
Lezi yizinkomba, hhayi ubufakazi: eziningi zinezincazelo ezingenacala. Ukuze ubone ngqo ukuthi yini eshintshile phakathi kwezinguqulo ezimbili, sebenzisa qhathanisa ama-PDF amabili.
Qinisekisa isiginesha ye-PDF – imibuzo
Ingabe kumahhala?
Yebo – akudingeki ubhalise, ama-PDF afika ku-10 MB namakhasi angu-200.
Ingabe “ayiphazamisekile” kusho ukuthi isiginesha isemthethweni?
Cha. Ukungaphazamiseki kusho ukuthi okuqukethwe okusayiniwe akuzange kushintshwe selokhu isiginesha yenziwa. Ukuthi isiginesha isemthethweni yini kuncike nasesitifiketini: ubani owasikhipha, ukuthi siholela yini kumhlinzeki othembekile nokuthi sihoxisiwe yini. Leli thuluzi alihloli izitifiketi ezinhlwini ezithembekile ze-Adobe noma ze-EU, futhi likusho lokho emphumeleni.
Kusho ukuthini “kushintshwe ngemva kokusayinwa”?
Kwengezwe okuqukethwe efayeleni ngemva kwesiginesha – isibonelo umbhalo, amakhasi noma izithombe ezishintshwe ngesihleli se-PDF. Ukugcwalisa izinkambu zamafomu, ukwengeza amazwana noma amanye amasiginesha kungavunyelwa ngusayinayo futhi kukhonjiswa ngokwehlukana.
Ingakwazi ukufakazela ukuthi i-PDF engasayiniwe yakhohliswa?
Cha. Kuma-PDF angasayiniwe ikhombisa izinkomba – ukugcinwa kamuva, inguqulo yangaphambili enombhalo ohlukile, amathuluzi okuhlela, izinsuku – okufanele zibhekisiswe. Eziningi zinezincazelo ezingenacala.
Ingabe niyaligcina ifayela lami?
Cha – ihlolwa enkumbulweni futhi ayigcinwa.
Yini i-PAdES?
PDF Advanced Electronic Signatures – izinga laseYurophu lamasiginesha angaphakathi kuma-PDF. U-B-B uyisiginesha eyisisekelo, u-B-T wengeza isitembu sesikhathi esivela kwisiphathimandla sezitembu zesikhathi, u-B-LT wengeza idatha edingekayo ukuze iqinisekiswe kamuva, u-B-LTA wengeza izitembu zesikhathi zokugcina umlando.
Isiginesha yami ikhombisa “ayihlolwanga ohlwini oluthembekile” – ingabe ingumbumbulu?
Akunjalo ngempela. Kusho ukuthi leli thuluzi alizange lihlole ukuthi ubani owakhipha isitifiketi. Vula i-PDF ku-Adobe Acrobat Reader ukuze ubone ukuthi isitifiketi siyathenjwa yini, noma ubuze umthumeli ukuthi imuphi umhlinzeki owasikhipha.