{"id":86636,"date":"2020-06-27T19:42:48","date_gmt":"2020-06-27T17:42:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-chrome-predlozhen-novyj-interfejs-pdf-prosmotrshhika-i-dobavlena-podderzhka-avif"},"modified":"2020-06-27T19:42:48","modified_gmt":"2020-06-27T17:42:48","slug":"v-chrome-predlozhen-novyj-interfejs-pdf-prosmotrshhika-i-dobavlena-podderzhka-avif","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/v-chrome-predlozhen-novyj-interfejs-pdf-prosmotrshhika-i-dobavlena-podderzhka-avif","title":{"rendered":"Nuova interfaccia del visualizzatore PDF e supporto AVIF in Chrome","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

In Chrome sono inclusi attivata<\/a><\/noindex> una nuova implementazione dell'interfaccia del visualizzatore integrato di documenti in formato PDF. L'interfaccia si distingue per il posizionamento in alto di tutte le impostazioni. Mentre in precedenza nella barra superiore venivano visualizzati solo il nome del file, le informazioni sulle pagine, i pulsanti di rotazione, stampa e salvataggio, ora sono stati spostati anche i contenuti della barra laterale, che includeva i controlli per lo zoom e il posizionamento del documento in base alle dimensioni della pagina. \u00c8 stata aggiunta<\/a><\/noindex> la possibilit\u00e0 di salvare moduli PDF modificati, cos\u00ec come modalit\u00e0<\/a><\/noindex> la visualizzazione a due pagine.<\/p>\n

Per attivare nuove funzionalit\u00e0 sono stati proposti i flag \u00abchrome:\/\/flags#pdf-viewer-update\u00bb, \u00abchrome:\/\/flags\/#pdf-form-save\u00bb e \u00abchrome:\/\/flags\/#pdf-two-up-view\u00bb.<\/p>\n

\"Nuova<\/a><\/noindex><\/center><\/p>\n

\"Nuova<\/a><\/noindex><\/center><\/p>\n

Tra le modifiche in Chrome si pu\u00f2 anche evidenziare l'inclusione<\/a><\/noindex> il supporto predefinito per il formato delle immagini AVIF<\/a><\/noindex> (AV1 Image Format), in cui sono coinvolte tecnologie di compressione intraframe dal formato di codifica video AV1. Il contenitore per la distribuzione dei dati compressi in AVIF \u00e8 completamente analogo a HEIF. AVIF supporta sia immagini in HDR (High Dynamic Range) e in spazio colore Wide-gamut, che in standard dynamic range (SDR). In Firefox, il supporto sperimentale per AVIF \u00e8 stato introdotto nella versione Firefox 77 (attivabile tramite image.avif.enabled in about:config).<\/p>\n

In passato Chrome ha promosso il formato delle immagini WebP<\/a><\/noindex>, che secondo i test<\/a><\/noindex> di Google consente di ridurre le dimensioni dei file delle immagini dal 25% al 34% mantenendo la qualit\u00e0 a livello del formato JPEG. Test alternativi dimostrano<\/a><\/noindex>, che WebP non \u00e8 cos\u00ec efficiente come ci si aspetterebbe \u2014 se lo si confronta non con l'encoder di riferimento cjpeg del JPEG Group, ma utilizzando un encoder pi\u00f9 efficiente. MozJPEG<\/a><\/noindex>, il vantaggio di WebP \u00e8 percepibile solo per risoluzioni basse (500px), le pi\u00f9 comunemente utilizzate nel Web. A una risoluzione di 1000px, il risultato \u00e8 quasi identico, mentre a una risoluzione di 1500px WebP \u00e8 addirittura inferiore a MozJPEG. AVIF in questi stessi test supera notevolmente MozJPEG, cjpeg e WebP, motivo per cui \u00e8 considerato dai produttori di browser un formato pi\u00f9 promettente.<\/p>\n

\"Nuova<\/a><\/noindex><\/center>
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\"Nuova<\/a><\/noindex><\/center>
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\"Nuova<\/a><\/noindex><\/center><\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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