{"id":243,"date":"2012-09-20T01:35:33","date_gmt":"2012-09-19T23:35:33","guid":{"rendered":"http:\/\/www.proof.de\/?p=243"},"modified":"2020-05-08T12:46:49","modified_gmt":"2020-05-08T10:46:49","slug":"linhas-brancas-com-impressao-de-pdfs-no-adobe-acrobat","status":"publish","type":"post","link":"https:\/\/www.proof.de\/pt\/weisse-linien-bei-druck-pdfs-in-adobe-acrobat\/","title":{"rendered":"Linhas brancas ao imprimir PDFs em Adobe Acrobat"},"content":{"rendered":"<div class=\"kk-star-ratings kksr-auto kksr-align-right kksr-valign-top\" data-payload='{\"align\":\"right\",\"id\":\"243\",\"slug\":\"default\",\"valign\":\"top\",\"ignore\":\"\",\"reference\":\"auto\",\"class\":\"\",\"count\":\"0\",\"legendonly\":\"\",\"readonly\":\"\",\"score\":\"0\",\"starsonly\":\"\",\"best\":\"5\",\"gap\":\"5\",\"greet\":\"Jetzt bewerten\",\"legend\":\"0\\\/5 - (0 votes)\",\"size\":\"24\",\"title\":\"Wei&szlig;e Linien bei Druck PDFs in Adobe Acrobat\",\"width\":\"0\",\"_legend\":\"{score}\\\/{best} - ({count} {votes})\",\"font_factor\":\"1.25\"}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">Avalie agora<\/span>\n    <\/div>\n    <\/div>\n<p>A quest\u00e3o muitas vezes surge porqu\u00ea, ao criar um ficheiro PDF-X\/3:2002 na pr\u00e9-visualiza\u00e7\u00e3o em Adobe Acr<a href=\"https:\/\/www.proof.de\/pt\/lexikon\/oba\/\" target=\"_self\" title='OBA \u00e9 a abreviatura de &quot;Optical Brightning Agents&quot; ou &quot;Optical Brightners&quot;.' class=\"encyclopedia\">oba<\/a>t, as linhas brancas aparecem frequentemente onde n\u00e3o existem linhas no ficheiro.<\/p>\n<p>A resposta \u00e9 bastante simples: em contraste com os actuais padr\u00f5es de impress\u00e3o PDF tais como PDF\/X-4:2010, que \u00e9 exportado como padr\u00e3o PDF 1.6, o padr\u00e3o PDF-X\/3:2002, que \u00e9 frequentemente exigido pelas impressoras, usa o formato PDF 1.3, no qual as transpar\u00eancias s\u00e3o proibidas. A consequ\u00eancia: Se voc\u00ea criar sombras em Adobe InDesign, por exemplo, elas s\u00e3o convertidas em imagens rectangulares. Se tais sombras s\u00e3o ainda usadas em imagens de fundo, aparecem as linhas brancas que correm horizontal e verticalmente atrav\u00e9s do PDF nos locais das sombras. Mas porque \u00e9 que estas linhas desaparecem na impress\u00e3o e tamb\u00e9m n\u00e3o s\u00e3o vis\u00edveis em outros programas como o MacOS Preview?<\/p>\n<p>O Acrobat tem uma pr\u00e9-visualiza\u00e7\u00e3o que aplica anti-aliasing aos elementos vectoriais de modo a exibir as arestas o mais suavemente poss\u00edvel. No entanto, esta configura\u00e7\u00e3o tamb\u00e9m afecta caminhos e mascaramentos que n\u00e3o s\u00e3o realmente vis\u00edveis. As imagens pixelizadas das transpar\u00eancias reduzidas s\u00e3o assim suavizadas muito ligeiramente. E \u00e9 precisamente neste processo que as linhas brancas do emba\u00e7amento s\u00e3o criadas, que na realidade t\u00eam o tamanho zero e, portanto, tamb\u00e9m s\u00e3o vis\u00edveis na impress\u00e3o em postsc<a href=\"https:\/\/www.proof.de\/pt\/lexikon\/cri\/\" target=\"_self\" title=\"O CRI (Colour Rendering Index) \u00e9 uma medida da qualidade de reprodu\u00e7\u00e3o de cores de uma fonte de luz. Indica qu\u00e3o bem uma fonte de luz reproduz as cores dos objectos em compara\u00e7\u00e3o com uma fonte de luz de refer\u00eancia, por exemplo, um espetro de luz do dia.\" class=\"encyclopedia\">grito<\/a>As impressoras com capacidade t desaparecem. Impressoras n\u00e3o PS imprimem parcialmente o ecr\u00e3, mantendo perturbadoramente as linhas.<\/p>\n<p>A maioria dos designers gr\u00e1ficos conhece o efeito, tem postsk<a href=\"https:\/\/www.proof.de\/pt\/lexikon\/rip\/\" target=\"_self\" title='Um RIP \u00e9 um processador de imagem raster. Ele processa dados em PDF ou Postscript e envia-os para impressoras de imagens conectadas ou impressoras de provas.' class=\"encyclopedia\">rip<\/a>Se n\u00e3o tiver a certeza de que a impressora est\u00e1 a funcionar bem, pode simplesmente viver com isso. No entanto, se as linhas brancas o incomodarem muito ou se tamb\u00e9m aparecerem na impress\u00e3o, pode simplesmente desativar o anti-aliasing nas prefer\u00eancias do Acrobat. Em Acrobat &gt; Prefer\u00eancias &gt; Apresenta\u00e7\u00e3o de p\u00e1gina, pode simplesmente desmarcar a op\u00e7\u00e3o \"Suavizar gr\u00e1ficos vectoriais\". Isto torna as margens dos dados vectoriais um pouco mais pixelizadas, mas as linhas brancas do anti-aliasing desaparecem imediatamente.<\/p>\n<figure id=\"attachment_244\" aria-describedby=\"caption-attachment-244\" style=\"width: 1014px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/blog1.proofen.de\/wp-content\/uploads\/2012\/09\/Bildschirmfoto-2012-09-20-um-01.29.02.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-244\" title='Aqui pode simplesmente desmarcar a op\u00e7\u00e3o &quot;Smooth vector graphics' src=\"https:\/\/blog1.proofen.de\/wp-content\/uploads\/2012\/09\/Bildschirmfoto-2012-09-20-um-01.29.02-1024x548.png\" alt='Aqui pode simplesmente desmarcar a op\u00e7\u00e3o &quot;Smooth vector graphics' width=\"1024\" height=\"548\" srcset=\"https:\/\/www.proof.de\/wp-content\/uploads\/2012\/09\/Bildschirmfoto-2012-09-20-um-01.29.02-1024x548.png 1024w, https:\/\/www.proof.de\/wp-content\/uploads\/2012\/09\/Bildschirmfoto-2012-09-20-um-01.29.02-300x161.png 300w, https:\/\/www.proof.de\/wp-content\/uploads\/2012\/09\/Bildschirmfoto-2012-09-20-um-01.29.02-768x411.png 768w, https:\/\/www.proof.de\/wp-content\/uploads\/2012\/09\/Bildschirmfoto-2012-09-20-um-01.29.02.png 1212w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"><\/a><figcaption id=\"caption-attachment-244\" class=\"wp-caption-text\">Captura de ecr\u00e3 a partir das prefer\u00eancias de visualiza\u00e7\u00e3o da p\u00e1gina em Adobe Acrobat<\/figcaption><\/figure>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>\u00c9 frequente surgir a quest\u00e3o de saber por que raz\u00e3o aparecem frequentemente linhas brancas na pr\u00e9-visualiza\u00e7\u00e3o do Adobe Acrobat ao criar um ficheiro PDF-X\/3:2002, quando na realidade n\u00e3o existem linhas no ficheiro. A resposta \u00e9 bastante simples: ao contr\u00e1rio das actuais normas de impress\u00e3o PDF, como a PDF\/X-4:2010, que \u00e9 exportada como norma PDF 1.6, a norma PDF-X\/3:2002 frequentemente exigida pelas impressoras utiliza o formato PDF 1.3, no qual as transpar\u00eancias s\u00e3o proibidas. Consequ\u00eancia: se criar sombras no Adobe InDesign, por exemplo, estas s\u00e3o convertidas em imagens rectangulares. Se continuar a utilizar essas sombras sobre imagens de fundo, ... <\/p>\n<p class=\"read-more-container\"><a title=\"Linhas brancas ao imprimir PDFs em Adobe Acrobat\" class=\"read-more button\" href=\"https:\/\/www.proof.de\/pt\/weisse-linien-bei-druck-pdfs-in-adobe-acrobat\/#more-243\" aria-label=\"Leia mais sobre Linhas brancas ao imprimir PDFs no Adobe Acrobat\">Leia mais<\/a><\/p>","protected":false},"author":2,"featured_media":244,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[18,443,441],"tags":[50,54,51,52,53,49],"class_list":["post-243","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-haufige-fragen","category-haeufige-fragen-zu-proofs","category-layout-tipps-und-tricks","tag-adobe-acrobat","tag-anti-aliasing","tag-druck-pdf","tag-pdf-1-3","tag-pdfx-32002","tag-weisse-linien","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50","no-featured-image-padding","resize-featured-image"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"Wodurch entstehen die weissen Linien bei der Anzeige in Adobe Acrobat in Druck PDFs nach Standard PDF\/X-3:2002? 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