{"id":11334,"date":"2026-01-10T12:29:54","date_gmt":"2026-01-10T04:29:54","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/vn\/ocr-in-pdf-what-it-is-and-its-benefits\/"},"modified":"2026-01-10T12:29:54","modified_gmt":"2026-01-10T04:29:54","slug":"ocr-in-pdf-what-it-is-and-its-benefits","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/vn\/ocr-in-pdf-what-it-is-and-its-benefits\/","title":{"rendered":"OCR trong PDF: N\u00f3 l\u00e0 g\u00ec v\u00e0 nh\u1eefng l\u1ee3i \u00edch c\u1ee7a n\u00f3"},"content":{"rendered":"<h2 class=\"western\">OCR l\u00e0 g\u00ec?<\/h2>\n<p>OCR l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a Nh\u1eadn d\u1ea1ng k\u00fd t\u1ef1 quang h\u1ecdc. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 cho ph\u00e9p chuy\u1ec3n \u0111\u1ed5i t\u00e0i li\u1ec7u qu\u00e9t, h\u00ecnh \u1ea3nh v\u00e0 PDF th\u00e0nh v\u0103n b\u1ea3n c\u00f3 th\u1ec3 ch\u1ec9nh s\u1eeda v\u00e0 t\u00ecm ki\u1ebfm \u0111\u01b0\u1ee3c. C\u00f4ng ngh\u1ec7 n\u00e0y s\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o \u0111\u1ec3 nh\u1eadn d\u1ea1ng v\u00e0 di\u1ec5n gi\u1ea3i v\u0103n b\u1ea3n ch\u1ee9a trong h\u00ecnh \u1ea3nh. Nh\u1edd c\u00f4ng ngh\u1ec7 n\u00e0y, c\u00f3 th\u1ec3 tr\u00edch xu\u1ea5t v\u00e0 x\u1eed l\u00fd th\u00f4ng tin trong t\u00e0i li\u1ec7u ch\u1ec9 trong v\u00e0i gi\u00e2y.<\/p>\n<h2 class=\"western\"><img alt=\"\" class=\"alignnone wp-image-17633\" decoding=\"async\" height=\"236\" loading=\"lazy\" sizes=\"auto, (max-width: 679px) 100vw, 679px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/02\/Using-of-OCR-in-PDF-1.jpg\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/02\/Using-of-OCR-in-PDF-1.jpg 1459w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/02\/Using-of-OCR-in-PDF-1-300x104.jpg 300w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/02\/Using-of-OCR-in-PDF-1-1030x358.jpg 1030w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/02\/Using-of-OCR-in-PDF-1-768x267.jpg 768w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/02\/Using-of-OCR-in-PDF-1-150x52.jpg 150w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2023\/02\/Using-of-OCR-in-PDF-1-400x139.jpg 400w\" width=\"679\"\/><\/h2>\n<h2 class=\"western\">L\u1ee3i \u00edch c\u1ee7a OCR trong PDF<\/h2>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng OCR trong PDF mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch, bi\u1ebfn n\u00f3 th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 qu\u00fd gi\u00e1 cho c\u00e1 nh\u00e2n, doanh nghi\u1ec7p v\u00e0 t\u1ed5 ch\u1ee9c.<\/p>\n<ol>\n<li><strong>T\u0103ng hi\u1ec7u su\u1ea5t:<\/strong>OCR c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u00e0i li\u1ec7u qu\u00e9t th\u00e0nh c\u00e1c t\u1eadp tin s\u1ed1 \u0111\u1ec3 ch\u1ec9nh s\u1eeda, t\u00ecm ki\u1ebfm v\u00e0 x\u1eed l\u00fd. N\u00f3 gi\u00fap t\u0103ng hi\u1ec7u su\u1ea5t c\u00f4ng vi\u1ec7c c\u1ee7a ch\u00fang ta b\u1eb1ng c\u00e1ch gi\u1ea3m th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c trong vi\u1ec7c nh\u1eadp d\u1eef li\u1ec7u th\u1ee7 c\u00f4ng.<\/li>\n<li><strong>C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn:<\/strong>V\u1edbi OCR trong PDF, nh\u1eefng ng\u01b0\u1eddi khi\u1ebfm th\u1ecb ho\u1eb7c g\u1eb7p kh\u00f3 kh\u0103n khi \u0111\u1ecdc v\u0103n b\u1ea3n in c\u00f3 th\u1ec3 tr\u00edch xu\u1ea5t v\u0103n b\u1ea3n t\u1eeb t\u00e0i li\u1ec7u. Sau \u0111\u00f3, h\u1ecd c\u00f3 th\u1ec3 th\u1eed chuy\u1ec3n v\u0103n b\u1ea3n \u0111\u00f3 sang c\u00e1c \u0111\u1ecbnh d\u1ea1ng d\u1ec5 ti\u1ebfp c\u1eadn h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ec7p \u00e2m thanh.<\/li>\n<li><strong>C\u1ea3i thi\u1ec7n qu\u1ea3n l\u00fd v\u00e0 b\u1ea3o t\u1ed3n d\u1eef li\u1ec7u:<\/strong>C\u1ea3i thi\u1ec7n qu\u1ea3n l\u00fd d\u1eef li\u1ec7u. OCR gi\u00fap doanh nghi\u1ec7p v\u00e0 t\u1ed5 ch\u1ee9c l\u01b0u tr\u1eef v\u00e0 qu\u1ea3n l\u00fd d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 h\u01a1n b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i t\u00e0i li\u1ec7u gi\u1ea5y th\u00e0nh t\u1eadp tin s\u1ed1. V\u00ec n\u00f3 lo\u1ea1i b\u1ecf nhu c\u1ea7u nh\u1eadp d\u1eef li\u1ec7u th\u1ee7 c\u00f4ng, \u0111i\u1ec1u n\u00e0y s\u1ebd c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 gi\u1ea3m nguy c\u01a1 m\u1ea5t m\u00e1t ho\u1eb7c h\u1ecfng d\u1eef li\u1ec7u.<\/li>\n<\/ol>\n<p>T\u00f3m l\u1ea1i, d\u00f9 b\u1ea1n l\u00e0 m\u1ed9t chuy\u00ean gia, ch\u1ee7 doanh nghi\u1ec7p hay c\u00e1 nh\u00e2n mu\u1ed1n qu\u1ea3n l\u00fd th\u00f4ng tin c\u00e1 nh\u00e2n, OCR trong PDF l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 qu\u00fd gi\u00e1 gi\u00fap b\u1ea1n khai th\u00e1c t\u1ed1i \u0111a gi\u00e1 tr\u1ecb t\u1eeb t\u00e0i li\u1ec7u c\u1ee7a m\u00ecnh.<\/p>\n<h2 class=\"western\">OCR trong Tr\u00ecnh ch\u1ec9nh s\u1eeda PDF tr\u1ef1c tuy\u1ebfn VP<\/h2>\n<p><a href=\"https:\/\/online.visual-paradigm.com\/online-pdf-editor\/\">Tr\u00ecnh ch\u1ec9nh s\u1eeda PDF mi\u1ec5n ph\u00ed tr\u1ef1c tuy\u1ebfn VP<\/a> h\u1ed7 tr\u1ee3 OCR, mang \u0111\u1ebfn cho b\u1ea1n tr\u1ea3i nghi\u1ec7m t\u1ed1t h\u01a1n.<br \/>\n\u0110\u1ecdc th\u00eam:<a href=\"https:\/\/blog.visual-paradigm.com\/how-to-perform-ocr-on-a-pdf\/\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 th\u1ef1c hi\u1ec7n OCR tr\u00ean m\u1ed9t t\u00e0i li\u1ec7u PDF<\/a><\/p>\n<div class=\"epyt-video-wrapper\"><iframe allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\" class=\"__youtube_prefs__ epyt-is-override no-lazyload\" data-no-lazy=\"1\" data-origheight=\"551\" data-origwidth=\"980\" data-skipgform_ajax_framebjll=\"\" height=\"551\" id=\"_ytid_87610\" loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/uGzXoYsy3Dk?enablejsapi=1&amp;autoplay=0&amp;cc_load_policy=0&amp;cc_lang_pref=&amp;iv_load_policy=1&amp;loop=0&amp;modestbranding=0&amp;rel=1&amp;fs=1&amp;playsinline=0&amp;autohide=2&amp;theme=dark&amp;color=red&amp;controls=1&amp;\" title=\"YouTube player\" width=\"980\"><\/iframe><\/div>\n","protected":false},"excerpt":{"rendered":"<p>OCR l\u00e0 g\u00ec? OCR l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a Nh\u1eadn d\u1ea1ng k\u00fd t\u1ef1 quang h\u1ecdc. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 cho ph\u00e9p chuy\u1ec3n \u0111\u1ed5i t\u00e0i li\u1ec7u qu\u00e9t, h\u00ecnh \u1ea3nh v\u00e0 PDF th\u00e0nh v\u0103n b\u1ea3n c\u00f3 th\u1ec3 ch\u1ec9nh s\u1eeda v\u00e0 t\u00ecm ki\u1ebfm \u0111\u01b0\u1ee3c. C\u00f4ng ngh\u1ec7 n\u00e0y s\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o \u0111\u1ec3 nh\u1eadn [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":11335,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-11334","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>OCR trong PDF: N\u00f3 l\u00e0 g\u00ec v\u00e0 nh\u1eefng l\u1ee3i \u00edch c\u1ee7a n\u00f3 - Visual Paradigm Blog<\/title>\n<meta name=\"description\" content=\"OCR is a useful technique for us when transferring scanned documents into digital files for editing. 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