{"id":11384,"date":"2026-01-10T13:29:52","date_gmt":"2026-01-10T05:29:52","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/vn\/what-is-pdf-a-2\/"},"modified":"2026-01-10T13:29:52","modified_gmt":"2026-01-10T05:29:52","slug":"what-is-pdf-a-2","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/vn\/what-is-pdf-a-2\/","title":{"rendered":"PDF\/A l\u00e0 g\u00ec?"},"content":{"rendered":"<h4><img alt=\"\" class=\"alignnone size-full wp-image-16298\" decoding=\"async\" height=\"397\" loading=\"lazy\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/12\/whatisapdfa_thumb.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/12\/whatisapdfa_thumb.png 499w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/12\/whatisapdfa_thumb-300x239.png 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/12\/whatisapdfa_thumb-150x119.png 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/12\/whatisapdfa_thumb-400x318.png 400w\" width=\"499\"\/><\/h4>\n<p class=\"western\"><strong>Ch\u00fang ta \u0111\u1ec1u hi\u1ec3u r\u1eb1ng c\u00f3<a href=\"https:\/\/blog.visual-paradigm.com\/5-advantages-of-using-pdf-files\/\"> nhi\u1ec1u l\u1ee3i \u00edch khi s\u1eed d\u1ee5ng pdf<\/a>nh\u01b0ng b\u1ea1n \u0111\u00e3 nghe \u0111\u1ebfn \u0111\u1ecbnh d\u1ea1ng thay th\u1ebf \u201cPDF\/A\u201d ch\u01b0a? N\u1ebfu ch\u01b0a, h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u ngay b\u00e2y gi\u1edd!!<\/strong><\/p>\n<h2 class=\"western\">PDF\/A l\u00e0 g\u00ec?<\/h2>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng<a href=\"https:\/\/en.wikipedia.org\/wiki\/PDF\/A#Conformance_levels_and_versions\">PDF\/A<\/a>\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho vi\u1ec7c l\u01b0u tr\u1eef v\u00e0 b\u1ea3o t\u1ed3n l\u00e2u d\u00e0i c\u00e1c t\u00e0i li\u1ec7u \u0111i\u1ec7n t\u1eed. \u0110\u00e2y l\u00e0 m\u1ed9t phi\u00ean b\u1ea3n \u0110\u1ecbnh d\u1ea1ng T\u00e0i li\u1ec7u Di \u0111\u1ed9ng tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ISO (PDF). Kh\u00e1c v\u1edbi PDF, cho ph\u00e9p c\u00e1c t\u00ednh n\u0103ng nh\u01b0 m\u00e3 h\u00f3a v\u00e0 li\u00ean k\u1ebft ph\u00f4ng ch\u1eef, PDF\/A h\u1ea1n ch\u1ebf nh\u1eefng t\u00ednh n\u0103ng n\u00e0y v\u00ec ch\u00fang kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi vi\u1ec7c l\u01b0u tr\u1eef l\u00e2u d\u00e0i<a href=\"https:\/\/datawizkb.leibniz-psychology.org\/index.php\/after-collection\/what-should-i-know-about-long-term-archiving-and-data-storage\/\">l\u01b0u tr\u1eef l\u00e2u d\u00e0i<\/a>. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e1i t\u1ea1o theo c\u00f9ng m\u1ed9t c\u00e1ch b\u1eb1ng \u0111\u1ecbnh d\u1ea1ng PDF\/A, b\u1ea5t k\u1ec3 \u1ee9ng d\u1ee5ng n\u00e0o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. V\u1ec1 c\u01a1 b\u1ea3n, t\u1ec7p ch\u1ee9a t\u1ea5t c\u1ea3 th\u00f4ng tin c\u1ea7n thi\u1ebft \u0111\u1ec3 hi\u1ec3n th\u1ecb li\u00ean t\u1ee5c t\u00e0i li\u1ec7u v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c ph\u1ea7n c\u1ee7a n\u00f3, gi\u00fap t\u00e0i li\u1ec7u c\u1ee7a b\u1ea1n an to\u00e0n, d\u1ec5 truy c\u1eadp v\u00e0 b\u1ea3o m\u1eadt trong th\u1eddi gian d\u00e0i.<\/p>\n<h2 class=\"western\">C\u00e1c lo\u1ea1i kh\u00e1c nhau c\u1ee7a PDF\/A l\u00e0 g\u00ec?<\/h2>\n<p>B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p c\u00e1c ti\u00eau chu\u1ea9n PDF\/A v\u00e0 c\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 kh\u00e1c nhau, c\u00f3 th\u1ec3 t\u1ea1o ra nhi\u1ec1u bi\u1ebfn th\u1ec3 PDF\/A. M\u1ed7i ti\u00eau chu\u1ea9n PDF\/A n\u00eau r\u00f5 c\u00e1c t\u00ednh n\u0103ng v\u00e0 ph\u01b0\u01a1ng ph\u00e1p n\u00e9n h\u00ecnh \u1ea3nh kh\u00e1c nhau c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o t\u1ed3n n\u1ed9i dung t\u1ec7p.<\/p>\n<p><strong>PDF\/A-1<\/strong><br \/>\nTi\u00eau chu\u1ea9n PDF\/A ban \u0111\u1ea7u, v\u1eabn \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ng\u00e0y nay v\u00e0 c\u0169ng l\u00e0 ti\u00eau chu\u1ea9n h\u1ea1n ch\u1ebf nh\u1ea5t, l\u00e0 PDF\/A-1. V\u00ec PDF\/A-1 d\u1ef1a tr\u00ean ti\u00eau chu\u1ea9n PDF 1.4 l\u1ed7i th\u1eddi, \u0111\u01b0\u1ee3c Adobe Systems ph\u00e1t h\u00e0nh n\u0103m 2001, n\u00ean n\u00f3 kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1edbi l\u1edbp, t\u1ec7p \u0111\u00ednh k\u00e8m ho\u1eb7c JPEG 2000.<\/p>\n<p><strong>PDF\/A-2<\/strong><br \/>\nT\u00ednh trong su\u1ed1t l\u00e0 m\u1ed9t trong nhi\u1ec1u t\u00ednh n\u0103ng m\u1edbi \u0111\u01b0\u1ee3c th\u00eam v\u00e0o PDF\/A-2 m\u00e0 kh\u00f4ng c\u00f3 trong PDF 1.4. C\u00e1c l\u1edbp, n\u00e9n h\u00ecnh \u1ea3nh t\u1ed1t h\u01a1n (JPEG 2000 v\u00e0 JBIG 2), v\u00e0 t\u1ec7p \u0111\u00ednh k\u00e8m\u2014cung c\u1ea5p c\u00e1c t\u1ec7p \u0111\u00ednh k\u00e8m \u1edf \u0111\u1ecbnh d\u1ea1ng PDF\/A\u2014\u0111\u1ec1u l\u00e0 nh\u1eefng t\u00ednh n\u0103ng m\u1edbi.<\/p>\n<p><strong>PDF\/A-3<\/strong><br \/>\nPDF\/A-3 v\u00e0 PDF\/A-2 g\u1ea7n nh\u01b0 c\u00f3 th\u1ec3 thay th\u1ebf l\u1eabn nhau. S\u1ef1 kh\u00e1c bi\u1ec7t duy nh\u1ea5t l\u00e0 PDF\/A-3 cho ph\u00e9p b\u1ea5t k\u1ef3 lo\u1ea1i t\u1ec7p n\u00e0o \u0111\u01b0\u1ee3c \u0111\u00ednh k\u00e8m. Tuy nhi\u00ean, ngo\u00e0i vi\u1ec7c \u0111\u1ea3m b\u1ea3o tr\u00edch xu\u1ea5t \u0111\u00fang c\u00e1ch, kh\u00f4ng c\u1ea7n thi\u1ebft ph\u1ea3i d\u00f9ng tr\u00ecnh xem PDF\/A \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c b\u1ed5 sung v\u1edbi c\u00e1c t\u1ec7p \u0111\u00ednh k\u00e8m.<\/p>\n<p><strong>PDF\/A-4<\/strong><br \/>\nTi\u00eau chu\u1ea9n PDF\/A ti\u1ebfp theo, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 PDF\/A-4, s\u1ebd \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh d\u01b0\u1edbi d\u1ea1ng ISO 19005-4:2020 v\u00e0o th\u00e1ng 11 n\u0103m 2020. A-4 c\u1eadp nh\u1eadt PDF\/A \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi PDF 2.0, ti\u00eau chu\u1ea9n ISO PDF m\u1edbi nh\u1ea5t. \u0110\u1eb7c bi\u1ec7t, PDF\/A-4 kh\u00f4ng s\u1eed d\u1ee5ng c\u00e1c m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 ri\u00eang bi\u1ec7t a, b v\u00e0 u.<\/p>\n<h2>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i m\u1ed9t t\u1ec7p PDF th\u00e0nh PDF\/A?<\/h2>\n<p>C\u00f3 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 b\u1ea5t k\u1ef3 c\u00f4ng c\u1ee5 n\u00e0o v\u00ec \u0111\u00e2y c\u0169ng l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 an ninh m\u1ea1ng c\u1ee7a b\u1ea1n. Do \u0111\u00f3, ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n n\u00ean s\u1eed d\u1ee5ng<a href=\"https:\/\/online.visual-paradigm.com\/online-pdf-editor\/convert-from-pdf\/\">C\u00f4ng c\u1ee5 chuy\u1ec3n \u0111\u1ed5i PDF mi\u1ec5n ph\u00ed tr\u1ef1c tuy\u1ebfn VP Online<\/a>, \u0111\u00e2y l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 chuy\u1ec3n \u0111\u1ed5i tuy\u1ec7t v\u1eddi cho ph\u00e9p b\u1ea1n chuy\u1ec3n \u0111\u1ed5i t\u1ec7p PDF c\u1ee7a m\u00ecnh sang nhi\u1ec1u \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nhau, bao g\u1ed3m PDF\/A v\u00e0 h\u1ed7 tr\u1ee3 chuy\u1ec3n \u0111\u1ed5i nhanh ch\u00f3ng. Tr\u00ean<a href=\"https:\/\/online.visual-paradigm.com\/online-pdf-editor\/\">Tr\u00ecnh ch\u1ec9nh s\u1eeda tr\u1ef1c tuy\u1ebfn VP Online,<\/a>b\u1ea1n c\u00f3 th\u1ec3 nhanh ch\u00f3ng v\u00e0 thu\u1eadn ti\u1ec7n chuy\u1ec3n \u0111\u1ed5i PDF th\u00e0nh PDF\/A.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We all understand there are various advantages of using pdf but have you heard of the alternative format &#8220;PDF\/A&#8221;? If not, let&#8217;s look into it now!!<\/p>\n","protected":false},"author":9,"featured_media":11385,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-11384","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>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-is-pdf-a-2\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PDF\/A l\u00e0 g\u00ec? - Visual Paradigm Blog\" \/>\n<meta property=\"og:description\" content=\"We all understand there are various advantages of using pdf but have you heard of the alternative format &quot;PDF\/A&quot;? 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