{"id":11376,"date":"2026-01-10T13:23:28","date_gmt":"2026-01-10T05:23:28","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/vn\/what-are-the-different-conformance-levels-of-pdf-a\/"},"modified":"2026-01-10T13:23:28","modified_gmt":"2026-01-10T05:23:28","slug":"what-are-the-different-conformance-levels-of-pdf-a","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/vn\/what-are-the-different-conformance-levels-of-pdf-a\/","title":{"rendered":"C\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 kh\u00e1c nhau c\u1ee7a PDF\/A l\u00e0 g\u00ec?"},"content":{"rendered":"<h2><img alt=\"\" class=\"alignnone size-full wp-image-16367\" decoding=\"async\" height=\"397\" loading=\"lazy\" sizes=\"auto, (max-width: 559px) 100vw, 559px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/12\/pdfalevel.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/12\/pdfalevel.png 559w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/12\/pdfalevel-300x213.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/12\/pdfalevel-150x107.png 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/12\/pdfalevel-400x284.png 400w\" width=\"559\"\/><\/h2>\n<p>\u00a0<\/p>\n<p>PDF\/A-1 h\u1ed7 tr\u1ee3 c\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 a v\u00e0 b, trong khi PDF\/A-2 v\u00e0 -3 h\u1ed7 tr\u1ee3 c\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 a, b v\u00e0 u.<br \/>\nC\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 n\u00e0y \u0111i\u1ec1u ch\u1ec9nh c\u00e1c ti\u00eau ch\u00ed &#8220;kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn&#8221; c\u1ee7a t\u1ec7p, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c m\u00e1y t\u00ednh v\u00e0 con ng\u01b0\u1eddi d\u1ec5 d\u00e0ng hi\u1ec3u n\u1ed9i dung nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n<h2><strong>D\u01b0\u1edbi \u0111\u00e2y ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 t\u1eebng m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7;<\/strong><\/h2>\n<p>\u00a0<\/p>\n<ul>\n<li><strong>M\u1ee9c \u0111\u1ed9 b (C\u01a1 b\u1ea3n) \u2013<\/strong><strong> PDF\/A-1b, PDF\/A-2b, PDF\/A-3b<br \/>\n<\/strong>Ti\u00eau chu\u1ea9n tu\u00e2n th\u1ee7 m\u1ee9c \u0111\u1ed9 B l\u00e0 d\u1ec5 \u0111\u00e1p \u1ee9ng nh\u1ea5t v\u00ec n\u00f3 ch\u1ec9 y\u00eau c\u1ea7u t\u00e0i li\u1ec7u tu\u00e2n theo c\u00e1c g\u1ee3i \u00fd v\u1ec1 vi\u1ec7c xem x\u00e9t \u0111\u00e1ng tin c\u1eady.<\/li>\n<li><strong>M\u1ee9c \u0111\u1ed9 a (C\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn) \u2013<\/strong><strong>PDF\/A-1a, PDF\/A-2a, PDF\/A-3a<br \/>\n<\/strong>M\u1ed9t t\u1eadp h\u1ee3p con c\u1ee7a tu\u00e2n th\u1ee7 m\u1ee9c \u0111\u1ed9 b l\u00e0 tu\u00e2n th\u1ee7 &#8220;c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn&#8221;. \u0110\u1ec3 duy tr\u00ec c\u1ea5u tr\u00fac logic, n\u1ed9i dung ng\u1eef ngh\u0129a v\u00e0 th\u1ee9 t\u1ef1 \u0111\u1ecdc t\u1ef1 nhi\u00ean c\u1ee7a t\u00e0i li\u1ec7u, n\u00f3 b\u1ed5 sung c\u00e1c y\u00eau c\u1ea7u v\u1ec1 th\u00f4ng tin. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 tu\u00e2n th\u1ee7 m\u1ee9c \u0111\u1ed9 a kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o t\u00e0i li\u1ec7u s\u1ebd v\u1eabn gi\u1eef nguy\u00ean h\u00ecnh d\u1ea1ng trong t\u01b0\u01a1ng lai, m\u00e0 c\u00f2n gi\u00fap n\u1ed9i dung tr\u1edf n\u00ean d\u1ec5 hi\u1ec3u v\u00e0 t\u00e1i s\u1eed d\u1ee5ng h\u01a1n cho c\u1ea3 m\u00e1y t\u00ednh v\u00e0 con ng\u01b0\u1eddi. M\u1ed9t t\u00e0i li\u1ec7u PDF\/A h\u1ee3p l\u1ec7 s\u1ebd c\u00f3 n\u1ed9i dung d\u1ec5 \u0111\u1ecdc h\u01a1n b\u1edfi m\u00e1y \u0111\u1ecdc m\u00e0n h\u00ecnh d\u00e0nh cho ng\u01b0\u1eddi khi\u1ebfm th\u1ecb, gi\u00fap t\u00ecm ki\u1ebfm v\u00e0 sao ch\u00e9p m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady.<\/li>\n<li><strong>M\u1ee9c \u0111\u1ed9 u (Unicode) \u2013<\/strong><strong>PDF\/A-2u, PDF\/A-3u<br \/>\n<\/strong>Gi\u1ed1ng nh\u01b0 &#8220;m\u1ee9c \u0111\u1ed9 a&#8221;, vi\u1ec7c \u00e1nh x\u1ea1 k\u00fd t\u1ef1 sang Unicode l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c tu\u00e2n th\u1ee7 m\u1ee9c \u0111\u1ed9 u. Tuy nhi\u00ean, n\u00f3 lo\u1ea1i b\u1ecf y\u00eau c\u1ea7u t\u1ea1i m\u1ee5c 6.7 c\u1ee7a ISO 19005-2 v\u1ec1 c\u1ea5u tr\u00fac logic nh\u00fang (t\u1ee9c l\u00e0 th\u1ebb v\u00e0 c\u00e2y c\u1ea5u tr\u00fac) \u1edf m\u1ee9c \u0111\u1ed9 a (PDF 1.7). Do \u0111\u00f3, n\u1ed9i dung trong t\u00e0i li\u1ec7u PDF\/A \u0111\u00e1p \u1ee9ng tu\u00e2n th\u1ee7 m\u1ee9c \u0111\u1ed9 u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm ki\u1ebfm v\u00e0 sao ch\u00e9p m\u1ed9t c\u00e1ch an to\u00e0n, nh\u01b0ng th\u1ee9 t\u1ef1 \u0111\u1ecdc kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o.<\/li>\n<\/ul>\n<h2><span id=\"How_to_turn_a_PDF_into_a_PDFA\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i m\u1ed9t t\u00e0i li\u1ec7u PDF th\u00e0nh PDF\/A?<\/span><\/h2>\n<p>C\u00f3 r\u1ea5t nhi\u1ec1u c\u00f4ng c\u1ee5 chuy\u1ec3n \u0111\u1ed5i PDF sang PDF\/A tr\u00ean th\u1ecb tr\u01b0\u1eddng, nh\u01b0ng b\u1ea1n n\u00ean s\u1eed d\u1ee5ng &#8220;b\u1ea5t k\u1ef3 lo\u1ea1i&#8221; c\u00f4ng c\u1ee5 n\u00e0o v\u00ec an to\u00e0n tr\u1ef1c tuy\u1ebfn c\u1ee7a b\u1ea1n c\u0169ng \u0111ang b\u1ecb \u0111e d\u1ecda. Do \u0111\u00f3, ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n n\u00ean s\u1eed d\u1ee5ng\u00a0<a href=\"https:\/\/online.visual-paradigm.com\/online-pdf-editor\/convert-from-pdf\/\">C\u00f4ng c\u1ee5 chuy\u1ec3n \u0111\u1ed5i PDF tr\u1ef1c tuy\u1ebfn VP<\/a>, l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 chuy\u1ec3n \u0111\u1ed5i tuy\u1ec7t v\u1eddi, cung c\u1ea5p kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i nhanh ch\u00f3ng t\u00e0i li\u1ec7u PDF c\u1ee7a b\u1ea1n sang nhi\u1ec1u \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nhau, bao g\u1ed3m PDF\/A. B\u1ea1n c\u00f3 th\u1ec3 nhanh ch\u00f3ng v\u00e0 d\u1ec5 d\u00e0ng chuy\u1ec3n \u0111\u1ed5i PDF sang PDF\/A v\u1edbi\u00a0<a href=\"https:\/\/online.visual-paradigm.com\/online-pdf-editor\/convert-from-pdf\/\">Tr\u00ecnh ch\u1ec9nh s\u1eeda tr\u1ef1c tuy\u1ebfn VP<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 PDF\/A-1 h\u1ed7 tr\u1ee3 c\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 a v\u00e0 b, trong khi PDF\/A-2 v\u00e0 -3 h\u1ed7 tr\u1ee3 c\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 a, b v\u00e0 u. C\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 n\u00e0y \u0111i\u1ec1u ch\u1ec9nh c\u00e1c ti\u00eau ch\u00ed &#8220;kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn&#8221; c\u1ee7a t\u1ec7p, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c m\u00e1y t\u00ednh v\u00e0 con ng\u01b0\u1eddi d\u1ec5 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":11377,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-11376","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","loop-entry","clr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 kh\u00e1c nhau c\u1ee7a PDF\/A l\u00e0 g\u00ec? - Visual Paradigm Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.visual-paradigm.com\/vn\/what-are-the-different-conformance-levels-of-pdf-a\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 kh\u00e1c nhau c\u1ee7a PDF\/A l\u00e0 g\u00ec? - Visual Paradigm Blog\" \/>\n<meta property=\"og:description\" content=\"\u00a0 PDF\/A-1 h\u1ed7 tr\u1ee3 c\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 a v\u00e0 b, trong khi PDF\/A-2 v\u00e0 -3 h\u1ed7 tr\u1ee3 c\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 a, b v\u00e0 u. 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