Kusintha PDF ku PNG

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Kukweza

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 masamba a PDF kukhala zithunzi za PNG?

Kutsitsa fayilo ya PDF ndipo wosintha amapanga tsamba lililonse ngati fayilo ya PNG yosiyana. Popanda malire, tsamba lililonse limayamba kukhala chithunzi chake; zotsatirazi zimaphatikizidwa ngati ZIP archive 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 kuchotsa pa scanlines zofiltered, choncho aliyense pixel ali ndi moyo 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 kufunidwa. 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 panthawi yosintha yomwe imayembekezera kuwerenga mawu.

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 imapanga?

Mtengo woyambirira ndi 150 DPI (woyenera kuonera pazenera ndi kusindikiza). Zosankha zowonjezera zimasonyeza 72 (thumbnail ya webu), 150 (mtengo woyambirira), 300 (kusindikiza kwabwino), ndi 600 (kusindikiza kwabwino). Mtengo waukulu wa DPI = wowoneka bwino PNG koma mafayilo akulu.

Kodi ndingagwiritse ntchito masamba osiyanasiyana a PDF monga PNG?

Yes — page-range option imalandira ma inputs monga `1-5`, `1,3,5`, kapena `all` kuti asankhe masamba ati a PDF omwe amaoneka ku PNG. Kuthandiza pamene gawo limodzi kapena gawo limodzi la PDF lolimba likufunika.

Kodi PNG idzasunga PDF kufufuzidwa kwa mawu?

Sichoncho — kusinthitsa PDF kukhala PNG kumasintha mawu kukhala ma pixels. Ngati mukufuna kulemba mawu omwe angafunsedwe, gwiritsani ntchito njira yolemba mawu. Kulemba mawu (PNG) ndi kwa kuwonetsera, OCR, kapena kugwiritsira ntchito mawu.

Kodi ndi chiyani za kumbuyo kowonekera m'PNG?

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

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 tsamba la 100 la PDF → PNG pa 150 DPI. Kutalika kwa DPI kumadutsa kapena kumadutsa nthawi. Ogwiritsa ntchito Premium amapeza ogwira ntchito ambiri - masamba 100 amadziwika kuti amawoneka pansi pa 30 masekondi pa tiyi.

Kodi ndi chiyani kukula kwa fayilo ya tsamba lodziwika bwino PNG?

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

PDF

Mafayilo a PDF amasunga mawonekedwe pazida zonse ndi machitidwe ogwiritsira ntchito, zomwe zimapangitsa kuti akhale abwino kugawana zikalata zomwe ziyenera kuwoneka zofanana kulikonse.

PNG

Mafayilo a PNG amathandizira kuwonekera bwino ndipo amagwiritsa ntchito kukanikiza kosataya, zomwe zimapangitsa kuti akhale abwino kwambiri pazithunzi, ma logo, ndi zithunzi.