{"id":8586,"date":"2025-02-11T07:25:39","date_gmt":"2025-02-11T07:25:39","guid":{"rendered":"https:\/\/howtogeek.blog\/cs\/?p=8586"},"modified":"2025-02-11T07:25:39","modified_gmt":"2025-02-11T07:25:39","slug":"stepbystep-guide-to-extract-images-from-a-pdf-file","status":"publish","type":"post","link":"https:\/\/howtogeek.blog\/cs\/stepbystep-guide-to-extract-images-from-a-pdf-file\/","title":{"rendered":"Podrobn\u00fd pr\u016fvodce extrahov\u00e1n\u00edm obr\u00e1zk\u016f ze souboru PDF"},"content":{"rendered":"<p>Dokumenty PDF \u010dasto obsahuj\u00ed obr\u00e1zky, kter\u00e9 m\u016f\u017eete cht\u00edt znovu pou\u017e\u00edt nebo pou\u017e\u00edt jinde. Extrakce t\u011bchto obr\u00e1zk\u016f m\u016f\u017ee b\u00fdt provedena pomoc\u00ed r\u016fzn\u00fdch metod, z nich\u017e ka\u017ed\u00e1 je p\u0159izp\u016fsobena konkr\u00e9tn\u00ed platform\u011b a dostupn\u00fdm n\u00e1stroj\u016fm. Tato p\u0159\u00edru\u010dka v\u00e1s provede n\u011bkolika \u00fa\u010dinn\u00fdmi p\u0159\u00edstupy k bezprobl\u00e9mov\u00e9mu extrahov\u00e1n\u00ed obr\u00e1zk\u016f ze soubor\u016f PDF, a\u0165 u\u017e pou\u017e\u00edv\u00e1te opera\u010dn\u00ed syst\u00e9m Mac, Windows nebo Linux.<\/p>\n<h2 id=\"method-1-using-adobe-acrobat-reader-on-mac-and-windows\">Metoda 1: Extrahov\u00e1n\u00ed obr\u00e1zk\u016f p\u0159es Adobe Acrobat Reader na Mac a Windows<\/h2>\n<p>Adobe Acrobat Reader je v\u00fdkonn\u00fd a bezplatn\u00fd n\u00e1stroj dostupn\u00fd na platform\u00e1ch Mac i Windows. Poskytuje p\u0159\u00edm\u00fd zp\u016fsob, jak extrahovat obr\u00e1zky z dokument\u016f PDF. I kdy\u017e n\u011bkter\u00e1 nastaven\u00ed Linuxu mohou vyu\u017e\u00edvat n\u00e1stroje jako CrossOver pro Acrobat Reader, nemus\u00ed to b\u00fdt tak hladk\u00e9. N\u00e1sleduj\u00edc\u00ed kroky podrobn\u011b popisuj\u00ed proces extrakce:<\/p>\n<ul>\n<li>Nav\u0161tivte <a href=\"https:\/\/get.adobe.com\/reader\/.how\" rel=\"noopener noreferrer\">web Adobe<\/a> a kliknut\u00edm na tla\u010d\u00edtko &#8216;St\u00e1hnout Acrobat Reader&#8217; zahajte instalaci.<\/li>\n<li>Po sta\u017een\u00ed nainstalujte do za\u0159\u00edzen\u00ed Acrobat Reader. Spus\u0165te aplikaci a otev\u0159ete po\u017eadovan\u00fd PDF tak, \u017ee p\u0159ejdete do \u201eNab\u00eddky\u201c a vyberete \u201eOtev\u0159\u00edt\u201c.<\/li>\n<li>S otev\u0159en\u00fdm dokumentem vyhledejte a klikn\u011bte na n\u00e1stroj &#8216;Vybrat&#8217;, kter\u00fd by se m\u011bl zobrazit jako kurzor na panelu n\u00e1stroj\u016f, abyste se p\u0159ipravili na v\u00fdb\u011br obr\u00e1zku.<\/li>\n<li>Klikn\u011bte na obr\u00e1zek, kter\u00fd chcete extrahovat. M\u016f\u017eete bu\u010f kliknout na ikonu &#8216;Kop\u00edrovat&#8217;, nebo kliknout prav\u00fdm tla\u010d\u00edtkem na obr\u00e1zek a z kontextov\u00e9 nab\u00eddky vybrat &#8216;Kop\u00edrovat obr\u00e1zek&#8217;.<\/li>\n<li>Otev\u0159ete aplikaci pro \u00fapravu obr\u00e1zk\u016f (nap\u0159\u00edklad Microsoft Paint) a vlo\u017ete zkop\u00edrovan\u00fd obr\u00e1zek pomoc\u00ed zkratky <code>Ctrl<\/code>+ <code>V<\/code>.<\/li>\n<li>Chcete-li obr\u00e1zek upravit, pou\u017eijte n\u00e1stroj pro o\u0159\u00edznut\u00ed v editoru k odstran\u011bn\u00ed nepot\u0159ebn\u00fdch \u010d\u00e1st\u00ed. Zkratka pro o\u0159\u00edznut\u00ed v aplikaci Microsoft Paint je <code>Ctrl<\/code>+ <code>Shift<\/code>+ <code>X<\/code>, co\u017e umo\u017e\u0148uje dal\u0161\u00ed \u00fapravy, jako je kreslen\u00ed nebo p\u0159id\u00e1v\u00e1n\u00ed textu.<\/li>\n<li>Po dokon\u010den\u00ed \u00faprav ulo\u017ete obr\u00e1zek tak, \u017ee p\u0159ejdete do nab\u00eddky \u201eSoubor\u201c a vyberete mo\u017enost \u201eUlo\u017eit jako\u201c.Vyberte si preferovan\u00fd form\u00e1t, nap\u0159\u00edklad PNG nebo JPEG.<\/li>\n<li>Pokud pou\u017e\u00edv\u00e1te macOS, m\u016f\u017eete otev\u0159\u00edt n\u00e1stroj N\u00e1hled tak, \u017ee p\u0159ejdete na Launchpad. Klikn\u011bte na li\u0161tu nab\u00eddek, vyberte &#8216;Soubor&#8217; a zvolte &#8216;Nov\u00fd ze schr\u00e1nky&#8217; pro vlo\u017een\u00ed obr\u00e1zku a pot\u00e9 jej ulo\u017ete ze stejn\u00e9 nab\u00eddky.<\/li>\n<\/ul>\n<h2 id=\"method-2-using-pdfimages-on-linux\">Metoda 2: Extrakce obr\u00e1zk\u016f pomoc\u00ed pdfimages na Linuxu<\/h2>\n<p>Pro u\u017eivatele Linuxu nab\u00edz\u00ed n\u00e1stroj <a href=\"https:\/\/formulae.brew.sh\/formula\/poppler.how\" rel=\"noopener noreferrer\">Poppler<\/a> \u0159e\u0161en\u00ed p\u0159\u00edkazov\u00e9ho \u0159\u00e1dku pro extrahov\u00e1n\u00ed obr\u00e1zk\u016f z dokument\u016f PDF. Zde je n\u00e1vod, jak za\u010d\u00edt:<\/p>\n<ul>\n<li><strong>Na Macu:<\/strong> Nainstalujte <a href=\"https:\/\/formulae.brew.sh\/formula\/poppler.how\" rel=\"noopener noreferrer\">spr\u00e1vce bal\u00ed\u010dk\u016f Homebrew<\/a>. Pomoc\u00ed termin\u00e1lu spus\u0165te p\u0159\u00edkaz <code>brew install poppler<\/code>.<\/li>\n<li><strong>V syst\u00e9mu Linux:<\/strong> Otev\u0159ete Termin\u00e1l a nainstalujte bal\u00ed\u010dek poppler-utils pomoc\u00ed <code>sudo apt install poppler-utils<\/code>.<\/li>\n<li><strong>V syst\u00e9mu Windows:<\/strong> M\u016f\u017eete pou\u017e\u00edt <a href=\"https:\/\/community.chocolatey.org\/packages\/poppler.how\" rel=\"noopener noreferrer\">spr\u00e1vce bal\u00ed\u010dk\u016f Chocolatey<\/a>. Kompatibilita se v\u0161ak m\u016f\u017ee li\u0161it.<\/li>\n<li>Jakmile je Poppler nainstalov\u00e1n ve va\u0161em OS, pou\u017eijte p\u0159\u00edkaz <code>pdfimages -all example.pdf \/output\/directory\/<\/code>. T\u00edm se obnov\u00ed v\u0161echny obr\u00e1zky v jejich p\u016fvodn\u00edch form\u00e1tech.<\/li>\n<li>Chcete-li b\u011bhem extrakce p\u0159ev\u00e9st obr\u00e1zky do form\u00e1tu JPEG, prove\u010fte: <code>pdfimages -j example.pdf \/output\/directory\/<\/code>.<\/li>\n<li>Pokud se v\u00e1m p\u0159\u00edkazov\u00fd \u0159\u00e1dek zd\u00e1 skli\u010duj\u00edc\u00ed, zjednodu\u0161te proces zad\u00e1n\u00edm <code>pdfimages -all<\/code>, pot\u00e9 p\u0159et\u00e1hn\u011bte soubor PDF do termin\u00e1lu a pot\u00e9 p\u0159et\u00e1hn\u011bte c\u00edlovou slo\u017eku pro extrahovan\u00e9 obr\u00e1zky. V p\u0159\u00edpad\u011b pot\u0159eby p\u0159idejte na konec lom\u00edtko a stiskn\u011bte Enter.<\/li>\n<\/ul>\n<h2 id=\"method-3-using-the-snipping-tool-on-windows\">Metoda 3: Pou\u017eit\u00ed n\u00e1stroje pro vyst\u0159ihov\u00e1n\u00ed v syst\u00e9mu Windows<\/h2>\n<p>Vestav\u011bn\u00fd n\u00e1stroj Snipping Tool v syst\u00e9mu Windows umo\u017e\u0148uje rychl\u00e9 a ru\u010dn\u00ed sn\u00edm\u00e1n\u00ed obr\u00e1zk\u016f zobrazen\u00fdch na obrazovce. Tato metoda je ide\u00e1ln\u00ed pro extrahov\u00e1n\u00ed obr\u00e1zk\u016f z PDF:<\/p>\n<ul>\n<li>Za\u010dn\u011bte otev\u0159en\u00edm PDF a p\u0159ejd\u011bte na obr\u00e1zek, kter\u00fd chcete zachytit.<\/li>\n<li>Spus\u0165te n\u00e1stroj Snipping Tool z nab\u00eddky Start a kliknut\u00edm na tla\u010d\u00edtko &#8216;Nov\u00fd&#8217; spus\u0165te nov\u00fd z\u00e1znam.<\/li>\n<li>Vyberte oblast kolem obr\u00e1zku kliknut\u00edm, podr\u017een\u00edm a p\u0159eta\u017een\u00edm zam\u011b\u0159ovac\u00edho k\u0159\u00ed\u017ee pro vytvo\u0159en\u00ed sn\u00edmku obrazovky.<\/li>\n<li>Po zachycen\u00ed lze obr\u00e1zek upravovat p\u0159\u00edmo v n\u00e1stroji Snipping Tool, v\u010detn\u011b anotac\u00ed, o\u0159\u00edznut\u00ed atd. Upozor\u0148ujeme, \u017ee ve v\u00fdchoz\u00edm nastaven\u00ed n\u00e1stroj ukl\u00e1d\u00e1 obr\u00e1zky ve form\u00e1tu PNG.<\/li>\n<\/ul>\n<h3 id=\"things-to-know\">D\u016fle\u017eit\u00e9 \u00favahy<\/h3>\n<ul>\n<li>Online n\u00e1stroje pro extrakci obr\u00e1zk\u016f jsou k dispozici, ale \u010dasto omezuj\u00ed po\u010det obr\u00e1zk\u016f, kter\u00e9 m\u016f\u017eete extrahovat zdarma, a vy\u017eaduj\u00ed p\u0159edplatn\u00e9 pro neomezen\u00fd p\u0159\u00edstup.<\/li>\n<li>V\u011bt\u0161ina linuxov\u00fdch distribuc\u00ed umo\u017e\u0148uje p\u0159izp\u016fsobit oblasti sn\u00edmk\u016f obrazovky prost\u0159ednictv\u00edm Ovl\u00e1dac\u00edho centra, co\u017e poskytuje podobnou zku\u0161enost jako N\u00e1stroj pro vyst\u0159ihov\u00e1n\u00ed ve Windows.<\/li>\n<li>V syst\u00e9mu macOS pou\u017eijte kl\u00e1vesovou zkratku <code>Shift<\/code>+ <code>Command<\/code>+ <code>4<\/code>k po\u0159\u00edzen\u00ed sn\u00edmku obrazovky vybran\u00e9 oblasti a po\u0159\u00edzen\u00e9 sn\u00edmky se ulo\u017e\u00ed p\u0159\u00edmo na plochu.<\/li>\n<li>P\u0159i pou\u017e\u00edv\u00e1n\u00ed online n\u00e1stroj\u016f t\u0159et\u00edch stran pro extrakci obr\u00e1zk\u016f PDF bu\u010fte opatrn\u00ed, abyste ochr\u00e1nili jak\u00e9koli citliv\u00e9 informace obsa\u017een\u00e9 ve va\u0161em dokumentu.<\/li>\n<\/ul>\n<h2>\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n<h3><strong>1. Mohu extrahovat obr\u00e1zky z libovoln\u00e9ho souboru PDF?<\/strong><\/h3>\n<p>Obecn\u011b ano. Slo\u017eitost a nastaven\u00ed zabezpe\u010den\u00ed souboru PDF v\u0161ak mohou omezit mo\u017enosti extrakce, zejm\u00e9na pokud je soubor chr\u00e1n\u011bn heslem nebo m\u00e1 omezen\u00e1 opr\u00e1vn\u011bn\u00ed k \u00faprav\u00e1m.<\/p>\n<h3><strong>2. Kter\u00e1 metoda je up\u0159ednost\u0148ov\u00e1na pro extrakci obr\u00e1zk\u016f na Macu?<\/strong><\/h3>\n<p>Pokud pou\u017e\u00edv\u00e1te po\u010d\u00edta\u010d Mac, doporu\u010dujeme pou\u017e\u00edvat Adobe Acrobat Reader nebo Preview, proto\u017ee oba programy nab\u00edzej\u00ed u\u017eivatelsky p\u0159\u00edv\u011btiv\u00e1 rozhran\u00ed pro efektivn\u00ed extrahov\u00e1n\u00ed obr\u00e1zk\u016f.<\/p>\n<h3><strong>3. Existuj\u00ed n\u011bjak\u00e9 bezplatn\u00e9 online n\u00e1stroje pro extrahov\u00e1n\u00ed obr\u00e1zk\u016f z PDF?<\/strong><\/h3>\n<p>Ano, pro tento \u00fa\u010del existuje n\u011bkolik online n\u00e1stroj\u016f, jako je Smallpdf nebo PDFCandy.\u010casto v\u0161ak p\u0159ich\u00e1zej\u00ed s omezen\u00edm po\u010dtu obr\u00e1zk\u016f, velikosti souboru nebo vy\u017eaduj\u00ed p\u0159edplatn\u00e9 pro pokro\u010dil\u00e9 funkce.<\/p>\n<p><a class=\"xiaomi\" href=\"https:\/\/allthings.how\/how-to-extract-images-from-a-pdf\/\" rel=\"noopener noreferrer nofollow\" target=\"_blank\">Zdroj a obr\u00e1zky<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dokumenty PDF \u010dasto obsahuj\u00ed obr\u00e1zky, kter\u00e9 m\u016f\u017eete cht\u00edt znovu pou\u017e\u00edt nebo pou\u017e\u00edt jinde. Extrakce t\u011bchto obr\u00e1zk\u016f m\u016f\u017ee b\u00fdt provedena pomoc\u00ed r\u016fzn\u00fdch metod, z nich\u017e ka\u017ed\u00e1 je p\u0159izp\u016fsobena konkr\u00e9tn\u00ed platform\u011b a dostupn\u00fdm n\u00e1stroj\u016fm. Tato p\u0159\u00edru\u010dka v\u00e1s provede n\u011bkolika \u00fa\u010dinn\u00fdmi p\u0159\u00edstupy k bezprobl\u00e9mov\u00e9mu extrahov\u00e1n\u00ed obr\u00e1zk\u016f ze soubor\u016f PDF, a\u0165 u\u017e pou\u017e\u00edv\u00e1te opera\u010dn\u00ed syst\u00e9m Mac, Windows nebo Linux. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[57,126],"class_list":["post-8586","post","type-post","status-publish","format-standard","hentry","category-how-to","tag-apps","tag-microsoft"],"acf":[],"_links":{"self":[{"href":"https:\/\/howtogeek.blog\/cs\/wp-json\/wp\/v2\/posts\/8586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/howtogeek.blog\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/howtogeek.blog\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/howtogeek.blog\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/howtogeek.blog\/cs\/wp-json\/wp\/v2\/comments?post=8586"}],"version-history":[{"count":1,"href":"https:\/\/howtogeek.blog\/cs\/wp-json\/wp\/v2\/posts\/8586\/revisions"}],"predecessor-version":[{"id":8587,"href":"https:\/\/howtogeek.blog\/cs\/wp-json\/wp\/v2\/posts\/8586\/revisions\/8587"}],"wp:attachment":[{"href":"https:\/\/howtogeek.blog\/cs\/wp-json\/wp\/v2\/media?parent=8586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/howtogeek.blog\/cs\/wp-json\/wp\/v2\/categories?post=8586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/howtogeek.blog\/cs\/wp-json\/wp\/v2\/tags?post=8586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}