{"id":8727,"date":"2022-09-19T15:32:37","date_gmt":"2022-09-19T07:32:37","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/vn\/?p=8727"},"modified":"2022-10-25T14:39:03","modified_gmt":"2022-10-25T06:39:03","slug":"cach-chi-dinh-ma-hoa-cho-mot-tep-pdf","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/vn\/how-to-specify-encryption-for-a-pdf\/","title":{"rendered":"C\u00e1ch Ch\u1ec9 \u0110\u1ecbnh M\u00e3 H\u00f3a Cho M\u1ed9t T\u1ec7p PDF"},"content":{"rendered":"<p>Khi t\u1ea1o PDF, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 quy\u1ebft \u0111\u1ecbnh phi\u00ean b\u1ea3n m\u00e0 ch\u00fang t\u00f4i s\u1ebd l\u01b0u \u0111\u1ec3 l\u00e0m cho n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ph\u00f9 h\u1ee3p.\u00a0Trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd t\u00ecm hi\u1ec3u c\u00e1ch thi\u1ebft l\u1eadp n\u00f3 trong tr\u00ecnh ch\u1ec9nh s\u1eeda\u00a0<a href=\"https:\/\/online.visual-paradigm.com\/online-pdf-editor\/\">VP Online PDF<\/a>\u00a0.<\/p>\n<div class=\"epyt-video-wrapper\"><iframe loading=\"lazy\"  id=\"_ytid_95769\"  width=\"854\" height=\"480\"  data-origwidth=\"854\" data-origheight=\"480\" src=\"https:\/\/www.youtube.com\/embed\/IE4fyMipVQA?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;modestbranding=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;\" class=\"__youtube_prefs__  epyt-is-override  no-lazyload\" title=\"YouTube player\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe><\/div>\n<h1><span id=\"What_is_the_difference_between_different_compatibility\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch kh\u00e1c nhau l\u00e0 g\u00ec?<\/span><\/h1>\n<p>C\u00f3 c\u00e1c t\u00f9y ch\u1ecdn t\u01b0\u01a1ng th\u00edch kh\u00e1c nhau, ph\u00f9 h\u1ee3p trong c\u00e1c t\u00ecnh hu\u1ed1ng kh\u00e1c nhau.\u00a0N\u1ebfu ch\u00fang ta mu\u1ed1n b\u1ea3o v\u1ec7 t\u1ed1t t\u1ec7p PDF c\u1ee7a m\u00ecnh, t\u1ed1t h\u01a1n n\u00ean s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t \u0111\u1ec3 c\u00f3 th\u1ec3 \u0111\u1eb7t m\u1eadt kh\u1ea9u cho t\u1ec7p v\u00e0 \u0111\u1eb7t c\u00e1c h\u1ea1n ch\u1ebf kh\u00e1c nhau.\u00a0N\u1ebfu t\u1ec7p PDF \u0111\u01b0\u1ee3c ph\u00e1t t\u00e1n r\u1ed9ng r\u00e3i, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 ch\u1ecdn s\u1eed d\u1ee5ng Acrobat 6.0 ho\u1eb7c Acrobat 7.0, \u0111\u1ec3 t\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec1u c\u00f3 th\u1ec3 xem v\u00e0 in t\u00e0i li\u1ec7u.<\/p>\n<h1><span id=\"Specify_encryption_for_a_PDF\">Ch\u1ec9 \u0111\u1ecbnh m\u00e3 h\u00f3a cho m\u1ed9t t\u1ec7p PDF<\/span><\/h1>\n<h3><span id=\"Upload_PDF_to_your_workspace\"><span id=\"Upload_PDF_to_VP_Online_PDF_Editor\">T\u1ea3i PDF l\u00ean kh\u00f4ng gian l\u00e0m vi\u1ec7c c\u1ee7a b\u1ea1n<\/span><\/span><\/h3>\n<p>Trong kh\u00f4ng gian l\u00e0m vi\u1ec7c c\u1ee7a VP Online, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 t\u1ea3i l\u00ean t\u1ec7p PDF c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1ch nh\u1ea5n\u00a0<strong>\u1ee8ng d\u1ee5ng &#8211; PDF<\/strong>\u00a0, sau \u0111\u00f3 nh\u1ea5p v\u00e0o n\u00fat\u00a0<strong>Nh\u1eadp<\/strong>\u00a0.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-11127\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/09\/Screenshot-2022-09-19-10572220.png\" alt=\"\" width=\"805\" height=\"445\" \/><\/p>\n<h3><span id=\"Edit_the_PDF_Security_Setting\">Ch\u1ec9nh s\u1eeda c\u00e0i \u0111\u1eb7t b\u1ea3o m\u1eadt PDF<\/span><\/h3>\n<p>1 &#8211; Trong\u00a0<strong>T\u1ec7p<\/strong>\u00a0, nh\u1ea5n\u00a0<strong>Thu\u1ed9c t\u00ednh<\/strong>\u00a0\u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e0i \u0111\u1eb7t.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11130\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/09\/Screenshot-2022-09-19-1101520.png\" alt=\"\" width=\"531\" height=\"272\" \/><\/p>\n<p>2 &#8211; Nh\u1ea5n\u00a0<strong>B\u1ea3o m\u1eadt<\/strong>\u00a0, sau \u0111\u00f3 nh\u1eadp\u00a0<strong>B\u1ea3o m\u1eadt t\u00e0i li\u1ec7u<\/strong>\u00a0\u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e0i \u0111\u1eb7t.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11132\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/09\/Screenshot-2022-09-19-110210200.png\" alt=\"\" width=\"470\" height=\"446\" \/><\/p>\n<p>3 &#8211; Trong ph\u1ea7n T\u01b0\u01a1ng th\u00edch, ch\u00fang ta c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y 3 s\u1ef1 l\u1ef1a ch\u1ecdn, h\u00e3y ch\u1ecdn c\u00e1i ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n.\u00a0V\u00ed d\u1ee5: n\u1ebfu ch\u00fang ta mu\u1ed1n c\u00f3 \u0111\u1ed9 b\u1ea3o m\u1eadt cao h\u01a1n, ch\u00fang ta c\u00f3 th\u1ec3 ch\u1ecdn\u00a0<strong>Acrobat X tr\u1edf l\u00ean (256-bit AES)<\/strong><\/p>\n<p id=\"BWOJUhI\">\u00a0n\u01a1i \u0111\u00e2y.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-11143 \" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/09\/Pasted-2.png\" width=\"802\" height=\"193\" \/><\/p>\n<p>Sau \u0111\u00f3, ch\u00fang t\u00f4i c\u1ea7n \u0111\u1eb7t m\u1eadt kh\u1ea9u n\u1ebfu h\u1ea1n ch\u1ebf \u0111\u01b0\u1ee3c \u0111\u1eb7t trong t\u00e0i li\u1ec7u c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n<p id=\"XwyUSsh\"><img decoding=\"async\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/09\/Pasted-3.png\" \/><\/p>\n<h3><span id=\"Export_the_PDF\">Xu\u1ea5t PDF<\/span><\/h3>\n<p>1 &#8211; Nh\u1ea5p v\u00e0o\u00a0<strong>L\u01b0u d\u01b0\u1edbi d\u1ea1ng PDF<\/strong>\u00a0trong Xu\u1ea5t.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11153\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/09\/Screenshot-2022-09-19-1118310.png\" alt=\"\" width=\"443\" height=\"244\" \/><\/p>\n<p>2 &#8211; Ch\u1ecdn ph\u1ea1m vi trang c\u1ee7a PDF m\u00e0 ch\u00fang t\u00f4i s\u1ebd xu\u1ea5t.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-11154\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/09\/Screenshot-2022-09-19-1119030.png\" alt=\"\" width=\"497\" height=\"276\" \/><\/p>\n<p>3 &#8211; Nh\u1ea5p v\u00e0o c\u1eeda s\u1ed5 b\u1eadt l\u00ean \u0111\u1ec3 t\u1ea3i xu\u1ed1ng PDF.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11155\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/09\/Screenshot-2022-09-19-11194200.png\" alt=\"\" width=\"488\" height=\"205\" \/><\/p>\n<p>4 &#8211; Khi ki\u1ec3m tra thu\u1ed9c t\u00ednh c\u1ee7a PDF, ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng M\u1ee9c \u0111\u1ed9 m\u00e3 h\u00f3a gi\u1ed1ng nh\u01b0 c\u00e0i \u0111\u1eb7t c\u1ee7a ch\u00fang ta.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11157\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/09\/security-level0.png\" alt=\"\" width=\"414\" height=\"420\" \/><\/p>\n<p>**\u00a0<em>Xin l\u01b0u \u00fd r\u1eb1ng t\u00ednh n\u0103ng n\u00e0y ch\u1ec9 c\u00f3 s\u1eb5n trong Phi\u00ean b\u1ea3n K\u1ebft h\u1ee3p c\u1ee7a M\u00f4 h\u00ecnh Tr\u1ef1c quan Tr\u1ef1c tuy\u1ebfn.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Khi t\u1ea1o PDF, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 quy\u1ebft \u0111\u1ecbnh phi\u00ean b\u1ea3n m\u00e0 ch\u00fang t\u00f4i s\u1ebd l\u01b0u \u0111\u1ec3 l\u00e0m cho n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ph\u00f9 h\u1ee3p.\u00a0Trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd t\u00ecm hi\u1ec3u c\u00e1ch thi\u1ebft l\u1eadp n\u00f3 trong tr\u00ecnh ch\u1ec9nh s\u1eeda\u00a0VP Online PDF\u00a0. S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch kh\u00e1c nhau [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":8774,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[49],"tags":[],"class_list":["post-8727","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pdf-editing","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\u00e1ch Ch\u1ec9 \u0110\u1ecbnh M\u00e3 H\u00f3a Cho M\u1ed9t T\u1ec7p PDF - 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\/how-to-specify-encryption-for-a-pdf\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1ch Ch\u1ec9 \u0110\u1ecbnh M\u00e3 H\u00f3a Cho M\u1ed9t T\u1ec7p PDF - Visual Paradigm Blog\" \/>\n<meta property=\"og:description\" content=\"Khi t\u1ea1o PDF, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 quy\u1ebft \u0111\u1ecbnh phi\u00ean b\u1ea3n m\u00e0 ch\u00fang t\u00f4i s\u1ebd l\u01b0u \u0111\u1ec3 l\u00e0m cho n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ph\u00f9 h\u1ee3p.\u00a0Trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd t\u00ecm hi\u1ec3u c\u00e1ch thi\u1ebft l\u1eadp n\u00f3 trong tr\u00ecnh ch\u1ec9nh s\u1eeda\u00a0VP Online PDF\u00a0. 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