Sinthani PDF ku PNG

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Momwe mungasinthire PDF ku PNG

Gawo 1: Kwezani yanu PDF mafayilo pogwiritsa ntchito batani lomwe lili pamwambapa kapena pokoka ndi kugwetsa.

Gawo 2: Dinani batani la 'Convert' kuti muyambe kusintha.

Gawo 3: Tsitsani pulogalamu yanu yosinthidwa PNG mafayilo

PDF ku PNG Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji PDF masamba kukhala PNG zithunzi?

Kutsitsa fayilo ya PDF ndipo wosinthira amapanga tsamba lililonse ngati fayilo ya PNG yosiyana. Popanda malire, tsamba lililonse limasintha kukhala chithunzi chake chokha; zotsatira zake zimaphatikizidwa ngati archive ya ZIP yoyenera kutsitsa. PDF ndi Adobe's Portable Document Format kuchokera 1993, standardized monga ISO 32000 ndi pano universal fixed-layout wapamwamba. PNG anapangidwa mu 1996 monga patent-free kuchotsa kwa GIF, ndi anayamba webusaiti default lossless chithunzi mtundu.

Kodi PNG imathandizira kuwala?

Format imagwira ntchito, koma chiyambicho sichimakhala ndi alpha kuti ipereke - ma frame a video ndi masamba opangidwa ndi mawonekedwe owoneka bwino, kotero kuti ma pixel onse amafika molimba. Chingwe cha alpha chimakhala chothandiza pambuyo pake: kumatanthauza kuti mutha kuchotsa chinthu kuchokera ku PNG pambuyo pake popanda kusintha mtundu. PNG ndi kusankha koyenera kwa zithunzi, malogo, line art ndi chilichonse ndi zosalimba mapiko kapena kuwala - palibe kuyimba, palibe kuwala band.

Kodi ndi chiyani chofunikira pa PNG mafayilo?

Kukula kwakukulu kuposa momwe mungayembekezere, chifukwa PNG imasunga ma pixel onse moyenera kuposa kuyerekezera. 1080p imakhalabe pafupi ndi 2-5 MB ndipo 4K imakhalabe pafupi ndi 6-15 MB, kotero kutulutsa kwanthawi yayitali kumawonjezera mwachangu. Izi ndi malonda abwino pamene zithunzi zimatha kutulutsa kuwongolera, ndipo zoyipa pamene zikuyenda mozungulira patsamba la webusaiti. PNG amagwiritsa ntchito DEFLATE kusamvana pa scanlines zofiltered, choncho aliyense pixel amapulumuka moyenera, kuphatikizapo 8-bit alpha channel.

Kodi ndingasinthe gawo limodzi la PDF m'malo mwake zonse?

Yes — page-range options takes `1-5`, `1,3,5` or `all`, so a single chapter, an appendix or just the cover can be extracted without processing the rest. On a long document that is the difference between a handful of files and several hundreds.

Kodi PDF mbali ya ichi kusintha searchable?

Zimatengera kuti pali mawu a m’bukuli. PDF yopangidwa kuchokera ku fayilo imagwiritsa ntchito malemba ochokera m’bukuli ndipo imatha kufufuzidwa. PDF yopangidwa kuchokera ku scans kapena zithunzi ndi chithunzi cha malemba koma sichingakhalepo mpaka OCR iwonjezere malemba. /pdf-ocr/ imapangitsa kuti izi zitheke, ndipo ndi bwino kuyendetsa pulogalamuyi pambuyo pa kusintha kwa malemba.

Kodi ndili ndi chithunzi chimodzi patsamba?

Ndikoyenera - tsamba lililonse limawoneka ngati fayilo ya PNG ndipo seti imafika ngati ZIP. Chosankha cha tsamba losiyanasiyana chimachepetsa pamene mukufuna kusindikiza kapena gawo limodzi, ndipo kukhazikitsa kwake patsamba limodzi kumabweretsa fayilo imodzi kuposa archive.

DPI iti yomwe PNG imagwiritsa ntchito?

Mtengo woyambirira ndi 150 DPI (woyenera kuonera pazenera ndi kujambula zithunzi zambiri). Malamulo owonjezera amasonyeza 72 (thumbnail ya webu), 150 (mtengo woyambirira), 300 (kujambula zithunzi) ndi 600 (kujambula zithunzi zamtundu waukulu). Mtengo waukulu wa DPI = PNG wowoneka bwino koma ndi wapamwamba wolemera kwambiri.

Kodi ndingagwiritse ntchito masamba osiyanasiyana a PDF ngati PNG?

Ndiyo — mndandanda watsamba amavomereza zigawo monga `1-5`, `1,3,5`, kapena `zosefera` kuti asankhe zomwe zitsamba za PDF zimasonyeza kuti PNG. Zimathandiza pamene chigawo kapena mndandanda wa PDF wotalika ndicho chofunika.

Kodi PNG idzasunga PDF yofunsira malemba?

Sichoncho — kusintha PDF kukhala PNG kumasintha malemba kukhala ma pixels. Ngati mukufuna kutumiza mauthenga omwe angapezeke, gwiritsani ntchito chiyambi cha PDF ndi kugwiritsa ntchito chida chochotsa mauthenga. Kutumiza zithunzi (PNG) ndi kwa kuwonetsera, OCR, kapena kugwiritsira ntchito zithunzi zina.

Kodi ndi chiyani pazochitika zowonekera m'PNG?

PNG imasunga kumbuyo kowonekera komwe tsamba PDF silinathe kukwaniritsa (kapena). JPG PNG siyingathe kusungira kuwonekera - masamba amawoneka oyera. Kuti mupange PNG, TIFF, kapena WebP yowoneka bwino.

Kodi ndi nthawi yayitali bwanji kuti PDF mpaka PNG itenge nthawi yayitali bwanji kuti ikhale ndi tsamba la 100?

Malinga ndi 30 mpaka 90 masekondi kwa 100-page PDF → PNG pa 150 DPI. DPI yotsika imadutsa kapena imadutsa nthawi. Ogwiritsa ntchito Premium amapeza ogwira ntchito ambiri - masamba 100 amadziwika kuti amawoneka pansi pa 30 masekondi pa tier.

Kodi ndi kukula kwa fayilo ya tsamba la PNG?

A 150-DPI PNG ya tsamba la A4 ndi 200-800 KB (PNG) kapena 50-150 KB (JPG quality 85).Kupititsa patsogolo ndi kuchuluka kwa tsamba kuti muchepetse kukula kwa bokosi - bokosi la 100-page PDF kuti PNG bokosi ndi 30-80 MB.

PDF

PDF mafayilo kuteteza kugawa pakati pa onse zipangizo ndi machitidwe, kuwapangitsa iwo abwino kwa kugawana mafayilo kuti ayenera kuwoneka mofanana pamodzi pamodzi.