{"id":44507,"date":"2025-08-06T02:54:20","date_gmt":"2025-08-06T02:54:20","guid":{"rendered":"https:\/\/staging.pageloot.com\/uncategorized\/best-practices-for-qr-code-readability\/"},"modified":"2026-09-29T06:19:31","modified_gmt":"2026-09-29T06:19:31","slug":"best-practices-for-qr-code-readability","status":"publish","type":"post","link":"https:\/\/pageloot.com\/vi\/blog\/best-practices-for-qr-code-readability\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn v\u1ec1 kh\u1ea3 n\u0103ng qu\u00e9t m\u00e3 QR \u0111\u00e1ng tin c\u1eady"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Kh\u00e1ch h\u00e0ng c\u1ee7a b\u1ea1n c\u00f3 th\u1ea5t v\u1ecdng v\u1edbi c\u00e1c m\u00e3 QR kh\u00f4ng th\u1ec3 qu\u00e9t \u0111\u01b0\u1ee3c kh\u00f4ng? M\u1ed9t m\u00e3 b\u1ecb l\u1ed7i d\u1eabn \u0111\u1ebfn m\u1ea5t t\u01b0\u01a1ng t\u00e1c ng\u01b0\u1eddi d\u00f9ng, l\u00e3ng ph\u00ed ng\u00e2n s\u00e1ch in \u1ea5n v\u00e0 b\u1ecf l\u1ee1 chuy\u1ec3n \u0111\u1ed5i. H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt v\u00e0 th\u1ef1c h\u00e0nh h\u00ecnh \u1ea3nh c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00e3 QR c\u1ee7a b\u1ea1n qu\u00e9t \u0111\u00e1ng tin c\u1eady tr\u00ean m\u1ecdi thi\u1ebft b\u1ecb di \u0111\u1ed9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a kh\u1ea3 n\u0103ng qu\u00e9t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00fd do ph\u1ed5 bi\u1ebfn nh\u1ea5t khi\u1ebfn vi\u1ec7c qu\u00e9t th\u1ea5t b\u1ea1i l\u00e0 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n k\u00e9m gi\u1eefa c\u00e1c m\u00f4-\u0111un m\u00e3 QR v\u00e0 n\u1ec1n c\u1ee7a ch\u00fang. Camera \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh ph\u00e1t hi\u1ec7n d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch \u0111o \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1 tr\u1edf l\u1ea1i c\u1ea3m bi\u1ebfn. C\u00e1c m\u00f4-\u0111un t\u1ed1i h\u01a1n h\u1ea5p th\u1ee5 \u00e1nh s\u00e1ng, trong khi n\u1ec1n s\u00e1ng h\u01a1n ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng. N\u1ebfu s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111\u1ed9 ph\u1ea3n x\u1ea1 qu\u00e1 nh\u1ecf, m\u00e1y qu\u00e9t kh\u00f4ng th\u1ec3 gi\u1ea3i m\u00e3 ma tr\u1eadn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 gi\u1eef cho t\u00e0i s\u1ea3n c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3, h\u00e3y xem x\u00e9t <a href=\"https:\/\/pageloot.com\/vi\/blog\/qr-code-color-contrast-best-practices\/\">c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t v\u1ec1 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n m\u00e0u c\u1ee7a m\u00e3 QR<\/a> tr\u01b0\u1edbc khi in \u1ea5n. Lu\u00f4n \u0111\u1eb7t m\u1ed9t m\u1eabu d\u1eef li\u1ec7u t\u1ed1i h\u01a1n tr\u00ean n\u1ec1n s\u00e1ng h\u01a1n. C\u00e1c m\u00f4-\u0111un m\u00e0u \u0111en ti\u00eau chu\u1ea9n tr\u00ean n\u1ec1n tr\u1eafng tinh cho t\u1ef7 l\u1ec7 t\u01b0\u01a1ng ph\u1ea3n 21:1, \u0111\u1ea1i di\u1ec7n cho s\u1ef1 k\u1ebft h\u1ee3p \u0111\u00e1ng tin c\u1eady nh\u1ea5t. M\u1eb7c d\u00f9 m\u00e0u s\u1eafc th\u01b0\u01a1ng hi\u1ec7u t\u00f9y ch\u1ec9nh c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng, b\u1ea1n n\u00ean duy tr\u00ec t\u1ef7 l\u1ec7 t\u01b0\u01a1ng ph\u1ea3n t\u1ed1i thi\u1ec3u l\u00e0 4.5:1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00e1nh c\u00e1c thi\u1ebft k\u1ebf \u0111\u1ea3o ng\u01b0\u1ee3c \u2013 ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c m\u00f4-\u0111un m\u00e0u tr\u1eafng tr\u00ean n\u1ec1n t\u1ed1i \u2013 v\u00ec nhi\u1ec1u \u1ee9ng d\u1ee5ng camera g\u1ed1c kh\u00f4ng th\u1ec3 gi\u1ea3i m\u00e3 c\u00e1c ma tr\u1eadn \u0111\u1ea3o ng\u01b0\u1ee3c. B\u1ea1n c\u0169ng ph\u1ea3i tr\u00e1nh c\u00e1c gradient tinh t\u1ebf, b\u00f3ng \u0111\u1ed5 v\u00e0 c\u00e1c k\u1ebft h\u1ee3p \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n th\u1ea5p nh\u01b0 x\u00e1m nh\u1ea1t tr\u00ean tr\u1eafng ho\u1eb7c \u0111\u1ecf \u0111\u1eadm tr\u00ean \u0111en.<\/p>\n\n\n\n<figure>\n<table>\n<thead>\n<tr>\n<th>C\u1eb7p m\u00e0u<\/th>\n<th>T\u1ef7 l\u1ec7 t\u01b0\u01a1ng ph\u1ea3n \u01b0\u1edbc t\u00ednh<\/th>\n<th>\u0110\u1ed9 tin c\u1eady khi qu\u00e9t<\/th>\n<th>S\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110en tr\u00ean Tr\u1eafng<\/td>\n<td>21:1<\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>L\u00fd t\u01b0\u1edfng cho m\u1ecdi ph\u01b0\u01a1ng ti\u1ec7n in v\u00e0 k\u1ef9 thu\u1eadt s\u1ed1<\/td>\n<\/tr>\n<tr>\n<td>Xanh h\u1ea3i qu\u00e2n tr\u00ean m\u00e0u be<\/td>\n<td>~15:1<\/td>\n<td>Xu\u1ea5t s\u1eafc<\/td>\n<td>Gi\u1ea3i ph\u00e1p thay th\u1ebf th\u01b0\u01a1ng hi\u1ec7u m\u1ea1nh m\u1ebd cho bao b\u00ec<\/td>\n<\/tr>\n<tr>\n<td>Xanh \u0111\u1eadm tr\u00ean n\u1ec1n tr\u1eafng<\/td>\n<td>~4.5:1<\/td>\n<td>T\u1ed1t<\/td>\n<td>Ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c cho b\u1ea3n in \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ecf tr\u00ean \u0110en<\/td>\n<td>~1.5:1<\/td>\n<td>R\u1ea5t k\u00e9m<\/td>\n<td>Tr\u00e1nh; c\u1ea3m bi\u1ebfn m\u00e1y qu\u00e9t kh\u00f4ng th\u1ec3 ph\u00e2n bi\u1ec7t c\u00e1c m\u00f4-\u0111un<\/td>\n<\/tr>\n<tr>\n<td>Tr\u1eafng tr\u00ean N\u1ec1n t\u1ed1i (\u0110\u1ea3o ng\u01b0\u1ee3c)<\/td>\n<td>21:1<\/td>\n<td>Kh\u00f4ng \u0111\u00e1ng tin c\u1eady<\/td>\n<td>Tr\u00e1nh; nhi\u1ec1u camera \u0111i\u1ec7n tho\u1ea1i m\u1eb7c \u0111\u1ecbnh kh\u00f4ng th\u1ec3 ph\u00e2n t\u00edch<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110i\u1ec1u ch\u1ec9nh k\u00edch th\u01b0\u1edbc m\u00e3 QR c\u1ee7a b\u1ea1n theo kho\u1ea3ng c\u00e1ch v\u00e0 m\u1eadt \u0111\u1ed9 d\u1eef li\u1ec7u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t m\u00e3 QR tr\u00f4ng r\u00f5 n\u00e9t khi nh\u00ecn g\u1ea7n c\u00f3 th\u1ec3 tr\u1edf n\u00ean ho\u00e0n to\u00e0n kh\u00f4ng \u0111\u1ecdc \u0111\u01b0\u1ee3c n\u1ebfu qu\u00e9t t\u1eeb xa. K\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd ph\u1ea3i t\u1ef7 l\u1ec7 tr\u1ef1c ti\u1ebfp v\u1edbi kho\u1ea3ng c\u00e1ch qu\u00e9t v\u00e0 l\u01b0\u1ee3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a trong ma tr\u1eadn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c t\u00e0i li\u1ec7u c\u1ea7m tay \u1edf c\u1ef1 ly g\u1ea7n nh\u01b0 danh thi\u1ebfp, t\u1edd r\u01a1i v\u00e0 l\u1ec1u b\u00e0n nh\u00e0 h\u00e0ng, k\u00edch th\u01b0\u1edbc in t\u1ed1i thi\u1ec3u \u0111\u00e1ng tin c\u1eady l\u00e0 2 x 2 cm (0.8 x 0.8 inch). In nh\u1ecf h\u01a1n ng\u01b0\u1ee1ng n\u00e0y s\u1ebd khi\u1ebfn \u1ed1ng k\u00ednh \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh gi\u00e1 r\u1ebb kh\u00f4ng th\u1ec3 nh\u1eadn di\u1ec7n c\u00e1c m\u00f4-\u0111un ri\u00eang l\u1ebb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng t\u1ea7m trung v\u00e0 t\u1ea7m xa, \u00e1p d\u1ee5ng t\u1ef7 l\u1ec7 kho\u1ea3ng c\u00e1ch tr\u00ean k\u00edch th\u01b0\u1edbc 10:1:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110o kho\u1ea3ng c\u00e1ch qu\u00e9t d\u1ef1 ki\u1ebfn gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e3.<\/li>\n<li>Chia kho\u1ea3ng c\u00e1ch \u0111\u00f3 cho 10 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u cao t\u1ed1i thi\u1ec3u c\u1ee7a m\u00e3.<\/li>\n<li>Th\u00eam chi\u1ec1u r\u1ed9ng n\u1ebfu m\u00e3 ch\u1ee9a URL d\u00e0i ho\u1eb7c t\u00edch h\u1ee3p th\u01b0\u01a1ng hi\u1ec7u h\u00ecnh \u1ea3nh t\u00f9y ch\u1ec9nh.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u00e1p ph\u00edch \u0111\u01b0\u1ee3c xem t\u1eeb kho\u1ea3ng c\u00e1ch 1 m\u00e9t y\u00eau c\u1ea7u m\u00e3 c\u00f3 k\u00edch th\u01b0\u1edbc \u00edt nh\u1ea5t 10 x 10 cm, trong khi m\u1ed9t bi\u1ec3n qu\u1ea3ng c\u00e1o ngo\u00e0i tr\u1eddi \u0111\u01b0\u1ee3c xem t\u1eeb 15 m\u00e9t y\u00eau c\u1ea7u m\u00e3 c\u00f3 k\u00edch th\u01b0\u1edbc \u00edt nh\u1ea5t 1.5 x 1.5 m\u00e9t. \u0110\u1ec3 xem bi\u1ec3u \u0111\u1ed3 k\u00edch th\u01b0\u1edbc chi ti\u1ebft tr\u00ean c\u00e1c \u0111\u1ecbnh d\u1ea1ng in, h\u00e3y tham kh\u1ea3o <a href=\"https:\/\/pageloot.com\/vi\/how-to\/qr-code-size-guide\/\">h\u01b0\u1edbng d\u1eabn k\u00edch th\u01b0\u1edbc m\u00e3 QR c\u1ee7a ch\u00fang t\u00f4i<\/a>.<\/p>\n\n\n\n<blockquote class=\"is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Thi\u1ebft k\u1ebf M\u00e3 c\u00f3 th\u1ec3 qu\u00e9t \u0111\u01b0\u1ee3c v\u1edbi X\u00e1c th\u1ef1c theo th\u1eddi gian th\u1ef1c<\/strong> B\u1ea1n mu\u1ed1n t\u1ea1o m\u00e3 th\u01b0\u01a1ng hi\u1ec7u c\u00f3 th\u1ec3 qu\u00e9t d\u1ec5 d\u00e0ng tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh? S\u1eed d\u1ee5ng <a href=\"https:\/\/pageloot.com\/vi\/qr-code-generator\/\">tr\u00ecnh t\u1ea1o m\u00e3 QR<\/a> \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c thi\u1ebft k\u1ebf t\u00f9y ch\u1ec9nh, \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n cao v\u1edbi ki\u1ec3m tra kh\u1ea3 n\u0103ng qu\u00e9t t\u1ef1 \u0111\u1ed9ng.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt cho v\u00f9ng y\u00ean t\u0129nh v\u00e0 s\u1eeda l\u1ed7i<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i m\u00e3 QR ch\u1ee9c n\u0103ng \u0111\u1ec1u d\u1ef1a v\u00e0o hai bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 c\u1ea5u tr\u00fac t\u00edch h\u1ee3p s\u1eb5n: v\u00f9ng bi\u00ean xung quanh v\u00e0 ki\u1ebfn tr\u00fac s\u1eeda l\u1ed7i n\u1ed9i b\u1ed9.<\/p>\n\n\n\n<figure><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/09\/clean-infographic-on-white-background-square-or-vertical-9-16-composition-blac-2749-bc4894e02cba-b4a6a514086c.webp\" alt=\"Danh s\u00e1ch ki\u1ec3m tra qu\u00e9t m\u00e3 QR\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00f9ng y\u00ean t\u0129nh: C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt qu\u1ed1c t\u1ebf (ISO\/IEC 18004) y\u00eau c\u1ea7u m\u1ed9t v\u00f9ng bi\u00ean kh\u00f4ng b\u1ecb c\u1ea3n tr\u1edf bao quanh c\u1ea3 b\u1ed1n c\u1ea1nh c\u1ee7a ma tr\u1eadn. V\u00f9ng bi\u00ean n\u00e0y ph\u1ea3i r\u1ed9ng \u00edt nh\u1ea5t b\u1ed1n m\u00f4-\u0111un. \u0110\u1eb7t v\u0103n b\u1ea3n, \u0111\u1ed3 h\u1ecda khung ho\u1eb7c h\u00ecnh \u1ea3nh n\u1ec1n b\u00ean trong chu vi n\u00e0y s\u1ebd ng\u0103n m\u00e1y qu\u00e9t ph\u00e2n l\u1eadp v\u1ecb tr\u00ed m\u00e3 b\u1eaft \u0111\u1ea7u v\u00e0 k\u1ebft th\u00fac.<\/li>\n<li>Ki\u1ebfn tr\u00fac s\u1eeda l\u1ed7i: M\u00e3 QR s\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n s\u1eeda l\u1ed7i Reed\u2013Solomon \u0111\u1ec3 t\u00e1i t\u1ea1o d\u1eef li\u1ec7u b\u1ecb thi\u1ebfu ho\u1eb7c b\u1ecb m\u00e9o. Bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 n\u00e0y cho ph\u00e9p c\u00e1c k\u00fd hi\u1ec7u \u0111\u01b0\u1ee3c qu\u00e9t ngay c\u1ea3 khi b\u1ecb tr\u1ea7y x\u01b0\u1edbc, che khu\u1ea5t m\u1ed9t ph\u1ea7n ho\u1eb7c in tr\u00ean v\u1eadt li\u1ec7u kh\u00f4ng \u0111\u1ec1u. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u <a href=\"https:\/\/pageloot.com\/vi\/blog\/how-error-correction-works-in-editable-qr-codes\/\">c\u00e1ch s\u1eeda l\u1ed7i ho\u1ea1t \u0111\u1ed9ng<\/a> \u0111\u1ec3 ch\u1ecdn m\u1ee9c \u0111\u1ed9 b\u1ec1n v\u1eefng ph\u00f9 h\u1ee3p cho vi\u1ec7c tri\u1ec3n khai c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 b\u1ed1n c\u1ea5p \u0111\u1ed9 s\u1eeda l\u1ed7i ti\u00eau chu\u1ea9n h\u00f3a:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ea5p \u0111\u1ed9 L (Th\u1ea5p): Kh\u00f4i ph\u1ee5c kho\u1ea3ng 7% d\u1eef li\u1ec7u b\u1ecb m\u1ea5t. T\u1ed1t nh\u1ea5t n\u00ean d\u00e0nh cho m\u00f4i tr\u01b0\u1eddng trong nh\u00e0 s\u1ea1ch s\u1ebd, \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t v\u1edbi th\u00f4ng tin t\u0129nh d\u00e0y \u0111\u1eb7c.<\/li>\n<li>M\u1ee9c M (Trung b\u00ecnh): Kh\u00f4i ph\u1ee5c kho\u1ea3ng 15% d\u1eef li\u1ec7u b\u1ecb m\u1ea5t. \u0110\u01b0\u1ee3c coi l\u00e0 m\u1eb7c \u0111\u1ecbnh c\u1ee7a ng\u00e0nh cho c\u00e1c b\u1ea3n in ti\u1ebfp th\u1ecb ti\u00eau chu\u1ea9n, kh\u00f4ng s\u1eeda \u0111\u1ed5i.<\/li>\n<li>M\u1ee9c Q (Ph\u1ea7n t\u01b0): Kh\u00f4i ph\u1ee5c kho\u1ea3ng 25% d\u1eef li\u1ec7u b\u1ecb m\u1ea5t. Th\u00edch h\u1ee3p cho b\u1ea3ng hi\u1ec7u ngo\u00e0i tr\u1eddi v\u00e0 bao b\u00ec b\u00e1n l\u1ebb c\u00f3 l\u01b0\u1ee3ng truy c\u1eadp cao.<\/li>\n<li>M\u1ee9c H (Cao): Kh\u00f4i ph\u1ee5c t\u1edbi 30% d\u1eef li\u1ec7u b\u1ecb m\u1ea5t. B\u1eaft bu\u1ed9c khi nh\u00fang logo t\u00f9y ch\u1ec9nh ho\u1eb7c tri\u1ec3n khai \u0111\u1ed3 h\u1ecda trong \u0111i\u1ec1u ki\u1ec7n ngo\u00e0i tr\u1eddi kh\u1eafc nghi\u1ec7t.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2n b\u1eb1ng thi\u1ebft k\u1ebf tr\u1ef1c quan v\u1edbi B\u1ea3o v\u1ec7 m\u1eabu \u0111\u1ecbnh v\u1ecb<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f9y ch\u1ec9nh m\u00e3 c\u1ee7a b\u1ea1n gi\u00fap c\u1ea3i thi\u1ec7n nh\u1eadn di\u1ec7n th\u01b0\u01a1ng hi\u1ec7u v\u00e0 khuy\u1ebfn kh\u00edch t\u01b0\u01a1ng t\u00e1c, nh\u01b0ng vi\u1ec7c t\u1ea1o ki\u1ec3u qu\u00e1 m\u1ee9c s\u1ebd g\u00e2y ra l\u1ed7i \u0111\u1ecdc.<\/p>\n\n\n\n<figure><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/09\/simple-flat-illustration-on-white-background-with-black-text-and-blue-and-light-3106-851a228f7ff0-0fec17c3c5b1.webp\" alt=\"V\u00f9ng an to\u00e0n cho logo tr\u00ean m\u00e3 QR\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Khi b\u1ea1n kh\u00e1m ph\u00e1 <a href=\"https:\/\/pageloot.com\/vi\/blog\/how-to-add-logos-to-qr-codes\/\">c\u00e1ch th\u00eam logo v\u00e0o m\u00e3 QR<\/a>, h\u00e3y gi\u1eef \u0111\u1ed3 h\u1ecda \u1edf gi\u1eefa v\u00e0 gi\u1edbi h\u1ea1n k\u00edch th\u01b0\u1edbc c\u1ee7a n\u00f3 kh\u00f4ng qu\u00e1 25% \u0111\u1ebfn 30% t\u1ed5ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t. V\u00ec logo che tr\u1ef1c ti\u1ebfp c\u00e1c m\u00f4-\u0111un d\u1eef li\u1ec7u, b\u1ea1n ph\u1ea3i \u0111\u1eb7t m\u1ee9c s\u1eeda l\u1ed7i th\u00e0nh M\u1ee9c H \u0111\u1ec3 m\u00e1y qu\u00e9t c\u00f3 th\u1ec3 t\u00e1i t\u1ea1o c\u00e1c byte b\u1ecb che.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng bao gi\u1edd che khu\u1ea5t ho\u1eb7c thay \u0111\u1ed5i ba h\u00ecnh vu\u00f4ng l\u1edbn n\u1eb1m \u1edf c\u00e1c g\u00f3c. C\u00e1c y\u1ebfu t\u1ed1 n\u00e0y, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1eabu \u0111\u1ecbnh v\u1ecb, c\u00f3 t\u1ef7 l\u1ec7 m\u00f4-\u0111un ch\u00ednh x\u00e1c 1:1:3:1:1 cho ph\u00e9p m\u00e1y \u1ea3nh x\u00e1c \u0111\u1ecbnh h\u01b0\u1edbng c\u1ee7a m\u00e3 t\u1eeb m\u1ecdi g\u00f3c nh\u00ecn. S\u1eed d\u1ee5ng m\u1ed9t c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng <a href=\"https:\/\/pageloot.com\/vi\/qr-code-generator-with-logo\/\">T\u1ea1o m\u00e3 QR c\u00f3 logo \u1edf gi\u1eefa<\/a> \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u00e1c ph\u1ea9m ngh\u1ec7 thu\u1eadt trung t\u00e2m c\u1ee7a b\u1ea1n n\u1eb1m trong c\u00e1c v\u00f9ng gi\u1edbi h\u1ea1n an to\u00e0n trong khi v\u1eabn gi\u1eef nguy\u00ean c\u00e1c m\u1eabu \u0111\u1ecbnh v\u1ecb \u1edf g\u00f3c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u1eadt li\u1ec7u b\u1ec1 m\u1eb7t, K\u1ef9 thu\u1eadt in v\u00e0 \u00c1nh s\u00e1ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eadt li\u1ec7u n\u1ec1n m\u00e0 m\u00e3 xu\u1ea5t hi\u1ec7n c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nh\u1eadn d\u1ea1ng quang h\u1ecdc nhi\u1ec1u nh\u01b0 \u0111\u1ecbnh d\u1ea1ng t\u1ec7p k\u1ef9 thu\u1eadt s\u1ed1. \u0110i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng t\u1eeb 100 \u0111\u1ebfn 1.000 lux ph\u1ea3i lu\u00f4n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec3u r\u00f5 <a href=\"https:\/\/pageloot.com\/vi\/blog\/how-printing-techniques-impact-qr-code-scannability\/\">c\u00e1ch c\u00e1c k\u1ef9 thu\u1eadt in \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng qu\u00e9t m\u00e3 QR<\/a> gi\u00fap b\u1ea1n tr\u00e1nh nh\u1eefng c\u1ea1m b\u1eaby th\u1ef1c t\u1ebf trong s\u1ea3n xu\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ho\u00e0n thi\u1ec7n v\u1eadt li\u1ec7u n\u1ec1n: C\u00e1c v\u1eadt li\u1ec7u ph\u1ea3n chi\u1ebfu cao nh\u01b0 gi\u1ea5y b\u00eca \u00e9p b\u00f3ng, k\u00ednh v\u00e0 kim lo\u1ea1i ch\u1ea3i t\u1ea1o ra \u00e1nh ch\u00f3i ph\u1ea3n x\u1ea1 l\u00e0m m\u00f9 c\u1ea3m bi\u1ebfn camera quang h\u1ecdc. Ch\u1ecdn gi\u1ea5y m\u1edd, vecni m\u1edd ho\u1eb7c l\u1edbp ph\u1ee7 vinyl \u0111\u1ec3 ph\u00e2n t\u00e1n \u00e1nh s\u00e1ng \u0111\u1ec1u.<\/li>\n<li>\u0110\u1ed9 cong h\u00ecnh h\u1ecdc: In tr\u00ean c\u00e1c v\u1eadt ch\u1ee9a cong nh\u01b0 lon, \u1ed1ng m\u1ef9 ph\u1ea9m ho\u1eb7c chai n\u01b0\u1edbc u\u1ed1ng g\u00e2y ra bi\u1ebfn d\u1ea1ng h\u00ecnh tr\u1ee5. M\u00e1y qu\u00e9t kh\u00f3 \u0111\u1ecdc c\u00e1c m\u00f4-\u0111un b\u1ecb bi\u1ebfn d\u1ea1ng quanh \u0111\u01b0\u1eddng cong. \u0110\u1eb7t m\u00e3 d\u1ecdc theo tr\u1ee5c ph\u1eb3ng nh\u1ea5t, ph\u00f3ng to k\u00edch th\u01b0\u1edbc t\u1ed5ng th\u1ec3 ho\u1eb7c gi\u1eef chu\u1ed7i d\u1eef li\u1ec7u c\u00e0ng ng\u1eafn c\u00e0ng t\u1ed1t.<\/li>\n<li>\u0110\u1ed9 ph\u00e2n gi\u1ea3i t\u1ec7p: C\u00e1c \u0111\u1ecbnh d\u1ea1ng n\u00e9n ti\u00eau chu\u1ea9n nh\u01b0 JPEG \u0111\u1ed9 ph\u00e2n gi\u1ea3i th\u1ea5p g\u00e2y ra c\u00e1c l\u1ed7i c\u1ea1nh v\u00e0 pixel h\u00f3a. \u0110\u1ec3 in chuy\u00ean nghi\u1ec7p, h\u00e3y xu\u1ea5t t\u00e1c ph\u1ea9m ngh\u1ec7 thu\u1eadt vector d\u01b0\u1edbi d\u1ea1ng t\u1ec7p SVG, EPS ho\u1eb7c PDF \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao \u1edf 300 \u0111\u1ebfn 600 DPI \u0111\u1ec3 duy tr\u00ec c\u00e1c c\u1ea1nh m\u00f4-\u0111un s\u1eafc n\u00e9t.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ecb tr\u00ed \u0111\u1eb7t chi\u1ebfn l\u01b0\u1ee3c c\u0169ng quy\u1ebft \u0111\u1ecbnh li\u1ec7u ng\u01b0\u1eddi d\u00f9ng c\u00f3 qu\u00e9t t\u00e0i s\u1ea3n c\u1ee7a b\u1ea1n hay kh\u00f4ng. Vi\u1ec7c xem x\u00e9t c\u00e1c nguy\u00ean t\u1eafc ch\u00ednh \u0111\u1ec3 <a href=\"https:\/\/pageloot.com\/vi\/blog\/ultimate-guide-to-qr-code-placement-in-marketing\/\">m\u00e3 QR \u0111\u00fang c\u00e1ch trong ti\u1ebfp th\u1ecb<\/a> \u0111\u1ea3m b\u1ea3o \u0111\u1ed3 h\u1ecda c\u1ee7a b\u1ea1n xu\u1ea5t hi\u1ec7n \u1edf \u0111\u1ed9 cao ti\u1ec7n d\u1ee5ng, ngang t\u1ea7m m\u1eaft, n\u01a1i b\u00f3ng, n\u1ebfp g\u1ea5p v\u00e0 ph\u1ea3n x\u1ea1 \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Gi\u1ea3m m\u1eadt \u0111\u1ed9 ma tr\u1eadn b\u1eb1ng m\u00e3 QR \u0111\u1ed9ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n ki\u1ec3m tra <a href=\"https:\/\/pageloot.com\/vi\/qr-code-marketing\/why-qr-code-not-working\/\">l\u00fd do m\u00e3 QR c\u1ee7a b\u1ea1n kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng<\/a>, vi\u1ec7c t\u1eadp trung d\u1eef li\u1ec7u d\u00e0y \u0111\u1eb7c th\u01b0\u1eddng l\u00e0 nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 c\u1ee7a v\u1ea5n \u0111\u1ec1. M\u00e3 t\u0129nh nh\u00fang to\u00e0n b\u1ed9 URL \u0111\u00edch tr\u1ef1c ti\u1ebfp v\u00e0o ma tr\u1eadn. Khi URL d\u00e0i h\u01a1n, ma tr\u1eadn m\u1edf r\u1ed9ng th\u00e0nh h\u00e0ng tr\u0103m m\u00f4-\u0111un nh\u1ecf, d\u00e0y \u0111\u1eb7c m\u00e0 c\u1ea3m bi\u1ebfn m\u00e1y \u1ea3nh gi\u00e1 r\u1ebb kh\u00f4ng th\u1ec3 gi\u1ea3i quy\u1ebft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e3 QR \u0111\u1ed9ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y b\u1eb1ng c\u00e1ch m\u00e3 h\u00f3a m\u1ed9t URL chuy\u1ec3n h\u01b0\u1edbng ng\u1eafn, v\u0129nh vi\u1ec5n. V\u00ec s\u1ed1 l\u01b0\u1ee3ng k\u00fd t\u1ef1 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a v\u1eabn ng\u1eafn g\u1ecdn, l\u01b0\u1edbi h\u00ecnh \u1ea3nh k\u1ebft qu\u1ea3 v\u1eabn t\u1ed1i thi\u1ec3u v\u1edbi c\u00e1c m\u00f4-\u0111un l\u1edbn h\u01a1n, d\u1ec5 nh\u1eadn bi\u1ebft. M\u00e3 \u0111\u1ed9ng c\u0169ng cho ph\u00e9p b\u1ea1n c\u1eadp nh\u1eadt URL \u0111\u00edch m\u00e0 kh\u00f4ng c\u1ea7n in l\u1ea1i bao b\u00ec, trong khi ph\u00e2n t\u00edch t\u00edch h\u1ee3p theo d\u00f5i s\u1ed1 l\u1ea7n qu\u00e9t, h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 v\u1ecb tr\u00ed t\u01b0\u01a1ng t\u00e1c theo th\u1eddi gian.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quy tr\u00ecnh ki\u1ec3m tra th\u1ef1c t\u1ebf to\u00e0n di\u1ec7n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng bao gi\u1edd g\u1eedi m\u00e3 QR \u0111i in th\u01b0\u01a1ng m\u1ea1i m\u00e0 kh\u00f4ng x\u00e1c th\u1ef1c thi\u1ebft k\u1ebf trong c\u00e1c m\u00f4i tr\u01b0\u1eddng v\u1eadt l\u00fd. Xem x\u00e9t c\u00e1ch <a href=\"https:\/\/pageloot.com\/vi\/blog\/how-to-test-qr-codes-for-mobile-usability\/\">ki\u1ec3m tra m\u00e3 QR v\u1ec1 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng<\/a> gi\u00fap ph\u00e1t hi\u1ec7n l\u1ed7i tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n c\u00e1c \u0111\u1ee3t in t\u1ed1n k\u00e9m.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ki\u1ec3m tra v\u1edbi nhi\u1ec1u thi\u1ebft b\u1ecb v\u1eadt l\u00fd, bao g\u1ed3m \u0111i\u1ec7n tho\u1ea1i iOS cao c\u1ea5p, m\u1eabu Android gi\u00e1 r\u1ebb v\u00e0 m\u00e1y t\u00ednh b\u1ea3ng t\u1ea7m trung.<\/li>\n<li>X\u00e1c minh hi\u1ec7u su\u1ea5t qu\u00e9t b\u1eb1ng c\u00e1c \u1ee9ng d\u1ee5ng m\u00e1y \u1ea3nh g\u1ed1c c\u0169ng nh\u01b0 m\u1ed9t \u1ee9ng d\u1ee5ng chuy\u00ean d\u1ee5ng <a href=\"https:\/\/pageloot.com\/vi\/qr-code-scanner\/\">Qu\u00e9t m\u00e3 QR<\/a> d\u1ee5ng c\u1ee5.<\/li>\n<li>In b\u1ea3n in th\u1eed tr\u00ean \u0111\u00fang ch\u1ea5t li\u1ec7u s\u1ea3n xu\u1ea5t \u0111\u1ec3 t\u00ednh \u0111\u1ebfn \u0111\u1ed9 h\u00fat m\u1ef1c, k\u1ebft c\u1ea5u b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ed9 s\u00e1ng c\u1ee7a gi\u1ea5y.<\/li>\n<li>Qu\u00e9t b\u1ea3n in th\u1eed d\u01b0\u1edbi nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng kh\u00e1c nhau, m\u00f4 ph\u1ecfng ph\u00f2ng t\u1ed1i, \u00e1nh s\u00e1ng hu\u1ef3nh quang ch\u00f3i g\u1eaft v\u00e0 \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi tr\u1ef1c ti\u1ebfp.<\/li>\n<li>Ki\u1ec3m tra qu\u00e9t t\u1eeb c\u00e1c g\u00f3c l\u1ec7ch t\u00e2m v\u00e0 kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a d\u1ef1 \u0111\u1ecbnh \u0111\u1ec3 thi\u1ebft l\u1eadp dung sai \u0111\u1ecdc.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Kh\u1edfi \u0111\u1ed9ng c\u00e1c chi\u1ebfn d\u1ecbch h\u00ecnh \u1ea3nh \u0111\u00e1ng tin c\u1eady<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng qu\u00e9t \u0111\u00e1ng tin c\u1eady kh\u00f4ng y\u00eau c\u1ea7u hy sinh thi\u1ebft k\u1ebf tr\u1ef1c quan. B\u1eb1ng c\u00e1ch duy tr\u00ec t\u1ef7 l\u1ec7 t\u01b0\u01a1ng ph\u1ea3n cao, b\u1ea3o v\u1ec7 v\u00f9ng y\u00ean t\u0129nh b\u1ed1n m\u00f4-\u0111un, ch\u1ecdn m\u1ee9c \u0111\u1ed9 s\u1eeda l\u1ed7i th\u00edch h\u1ee3p v\u00e0 gi\u1ea3m m\u1eadt \u0111\u1ed9 ma tr\u1eadn v\u1edbi URL \u0111\u1ed9ng, b\u1ea1n \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng g\u1eb7p r\u1eafc r\u1ed1i. Ki\u1ec3m tra m\u1ecdi t\u00e0i s\u1ea3n \u1edf d\u1ea1ng v\u1eadt l\u00fd cu\u1ed1i c\u00f9ng \u0111\u1ec3 kh\u00e1n gi\u1ea3 c\u1ee7a b\u1ea1n k\u1ebft n\u1ed1i ngay l\u1eadp t\u1ee9c v\u1edbi c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<div class=\"schema-faq\"><div class=\"schema-faq-section\" id=\"faq-question-5c42016189d6\"><strong class=\"schema-faq-question\">K\u00edch th\u01b0\u1edbc nh\u1ecf nh\u1ea5t tuy\u1ec7t \u0111\u1ed1i c\u1ee7a m\u00e3 QR \u0111\u01b0\u1ee3c in c\u00f3 th\u1ec3 l\u00e0 bao nhi\u00eau?<\/strong> <p class=\"schema-faq-answer\">\u0110\u1ed1i v\u1edbi qu\u00e9t t\u1ea7m g\u1ea7n tr\u00ean c\u00e1c v\u1eadt ph\u1ea9m nh\u01b0 danh thi\u1ebfp, k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u th\u1ef1c t\u1ebf l\u00e0 2 x 2 cm (0.8 x 0.8 inch). C\u00e1c m\u00e3 ch\u1ee9a d\u1eef li\u1ec7u d\u00e0y \u0111\u1eb7c h\u01a1n ho\u1eb7c \u0111\u01b0\u1ee3c xem t\u1eeb xa h\u01a1n y\u00eau c\u1ea7u k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n \u0111\u1ec3 v\u1eabn c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-83796cc0bd74\"><strong class=\"schema-faq-question\">T\u1ea1i sao m\u1ed9t s\u1ed1 \u0111i\u1ec7n tho\u1ea1i c\u0169 kh\u00f4ng qu\u00e9t \u0111\u01b0\u1ee3c m\u00e3 QR t\u00f9y ch\u1ec9nh?<\/strong> <p class=\"schema-faq-answer\">C\u1ea3m bi\u1ebfn \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh c\u0169 g\u1eb7p kh\u00f3 kh\u0103n v\u1edbi \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n th\u1ea5p, s\u01a1 \u0111\u1ed3 m\u00e0u \u0111\u1ea3o ng\u01b0\u1ee3c v\u00e0 m\u1eadt \u0111\u1ed9 d\u1eef li\u1ec7u d\u00e0y \u0111\u1eb7c. Trong khi c\u00e1c camera h\u00e0ng \u0111\u1ea7u m\u1edbi h\u01a1n b\u00f9 \u0111\u1eafp cho nh\u1eefng bi\u1ebfn th\u1ec3 t\u01b0\u01a1ng ph\u1ea3n tinh t\u1ebf, c\u00e1c \u1ed1ng k\u00ednh c\u0169 h\u01a1n y\u00eau c\u1ea7u c\u00e1c c\u1ea1nh s\u1eafc n\u00e9t, m\u00e0u t\u1ed1i tr\u00ean n\u1ec1n s\u00e1ng v\u00e0 c\u00e1c v\u00f9ng y\u00ean t\u0129nh \u0111\u1ea7y \u0111\u1ee7.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-ac54e8f9cdcd\"><strong class=\"schema-faq-question\">T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e0u gradient ho\u1eb7c m\u1eabu n\u1ec1n tr\u00ean m\u00e3 QR kh\u00f4ng?<\/strong> <p class=\"schema-faq-answer\">Kh\u00f4ng khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng hi\u1ec7u \u1ee9ng chuy\u1ec3n m\u00e0u v\u00e0 n\u1ec1n \u1ea3nh v\u00ec ch\u00fang t\u1ea1o ra c\u00e1c t\u00f4ng m\u00e0u trung gian g\u00e2y nh\u1ea7m l\u1eabn cho c\u1ea3m bi\u1ebfn quang h\u1ecdc. N\u1ebfu nguy\u00ean t\u1eafc th\u01b0\u01a1ng hi\u1ec7u c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u h\u00ecnh \u1ea3nh n\u1ec1n, h\u00e3y t\u00e1ch m\u00e3 trong m\u1ed9t v\u00f9ng ch\u1ee9a ch\u1eafc ch\u1eafn, c\u00f3 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n cao, duy tr\u00ec v\u00f9ng y\u00ean t\u0129nh b\u1ed1n m\u00f4-\u0111un.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ea3m b\u1ea3o m\u00e3 QR c\u1ee7a b\u1ea1n qu\u00e9t \u0111\u00e1ng tin c\u1eady tr\u00ean m\u1ecdi thi\u1ebft b\u1ecb di \u0111\u1ed9ng. Kh\u00e1m ph\u00e1 c\u00e1c quy t\u1eafc ch\u00ednh v\u1ec1 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n m\u00e0u s\u1eafc, k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u, v\u00f9ng y\u00ean t\u0129nh v\u00e0 m\u1ee9c \u0111\u1ed9 s\u1eeda l\u1ed7i.<\/p>","protected":false},"author":17,"featured_media":56358,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[2635],"tags":[],"class_list":["post-44507","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Guidelines for Reliable QR Code Scannability<\/title>\n<meta name=\"description\" content=\"Optimize QR code readability with best practices for contrast, sizing, quiet zones, and error correction. Ensure your codes scan reliably in any environment.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pageloot.com\/vi\/blog\/best-practices-for-qr-code-readability\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Guidelines for Reliable QR Code Scannability\" \/>\n<meta property=\"og:description\" content=\"Optimize QR code readability with best practices for contrast, sizing, quiet zones, and error correction. Ensure your codes scan reliably in any environment.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pageloot.com\/vi\/blog\/best-practices-for-qr-code-readability\/\" \/>\n<meta property=\"og:site_name\" content=\"Pageloot\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pageloot\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-06T02:54:20+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-29T06:19:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/03\/photorealistic-lifestyle-scene-of-a-person-scanning-a-high-contrast-qr-code-prin-6515-423f97d6a812.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1408\" \/>\n\t<meta property=\"og:image:height\" content=\"768\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Siim T\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@getpageloot\" \/>\n<meta name=\"twitter:site\" content=\"@getpageloot\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Siim T\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-practices-for-qr-code-readability\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-practices-for-qr-code-readability\\\/\"},\"author\":{\"name\":\"Siim T\",\"@id\":\"https:\\\/\\\/pageloot.com\\\/#\\\/schema\\\/person\\\/fa28992c2e52546f0812833bac852dfe\"},\"headline\":\"Guidelines for Reliable QR Code Scannability\",\"datePublished\":\"2025-08-06T02:54:20+00:00\",\"dateModified\":\"2026-09-29T06:19:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-practices-for-qr-code-readability\\\/\"},\"wordCount\":1431,\"publisher\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-practices-for-qr-code-readability\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pageloot.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/customer-scanning-poster-2f9540-ec801cf720d4.webp\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"vi\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-practices-for-qr-code-readability\\\/\",\"url\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-practices-for-qr-code-readability\\\/\",\"name\":\"Guidelines for Reliable QR Code Scannability\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-practices-for-qr-code-readability\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-practices-for-qr-code-readability\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pageloot.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/customer-scanning-poster-2f9540-ec801cf720d4.webp\",\"datePublished\":\"2025-08-06T02:54:20+00:00\",\"dateModified\":\"2026-09-29T06:19:31+00:00\",\"description\":\"Optimize QR code readability with best practices for contrast, sizing, quiet zones, and error correction. 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