{"id":7311,"date":"2026-10-30T10:49:26","date_gmt":"2026-10-30T03:49:26","guid":{"rendered":"https:\/\/kblack.vn\/kich-thuoc-anh-the\/anh-the-3x4\/"},"modified":"2026-10-30T10:49:26","modified_gmt":"2026-10-30T03:49:26","slug":"anh-the-3x4","status":"publish","type":"page","link":"https:\/\/kblack.vn\/en\/kich-thuoc-anh-the\/anh-the-3x4\/","title":{"rendered":"\u1ea2nh th\u1ebb 3\u00d74: k\u00edch th\u01b0\u1edbc, m\u00e0u n\u1ec1n &#038; c\u00e1ch l\u00e0m chu\u1ea9n 2026"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7311\" class=\"elementor elementor-7311 elementor-bc-flex-widget\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e0ef0e8 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"e0ef0e8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c1c6a13\" data-id=\"c1c6a13\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2712daf elementor-widget elementor-widget-html\" data-id=\"2712daf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<!--KBCP--><style>.kcp{--bg:#07090f;--p:#0f1424;--p2:#151b30;--ln:rgba(255,255,255,.08);--t:#eef2ff;--t2:rgba(226,233,255,.72);--c:#7ad7ff;--g:#f5c451;background:var(--bg);color:var(--t);font-family:Montserrat,'Be Vietnam Pro',system-ui,sans-serif;padding:0 16px 70px;line-height:1.6}\n.kcp *{box-sizing:border-box}.kcp .in{max-width:960px;margin:0 auto}.kcp a{color:var(--c)}\n.kcp .bc{font-size:12.5px;color:var(--t2);padding:22px 0 6px}.kcp .bc a{color:var(--t2);text-decoration:none}.kcp .bc a:hover{color:var(--c)}\n.kcp h1{font-size:clamp(26px,4vw,42px);line-height:1.15;font-weight:900;margin:6px 0 10px;color:#fff;letter-spacing:-.01em}\n.kcp .lead{color:var(--t2);font-size:15px;max-width:760px;margin:0 0 18px}\n.kcp h2{font-size:clamp(19px,2.4vw,24px);font-weight:800;margin:38px 0 12px;color:#fff}\n.kcp .qa{display:grid;grid-template-columns:1.2fr 1fr;gap:16px;align-items:stretch}\n.kcp .box{background:var(--p);border:1px solid var(--ln);border-radius:20px;padding:20px}\n.kcp .ans{background:linear-gradient(150deg,rgba(79,139,255,.18),var(--p));border-color:rgba(122,215,255,.25)}\n.kcp .ans .lb{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--c);font-weight:800}\n.kcp .ans p{margin:8px 0 16px;font-size:15.5px;color:#fff;line-height:1.65}\n.kcp .btn{display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:0 20px;border-radius:14px;font-weight:800;font-size:14.5px;text-decoration:none!important}\n.kcp .btn.g{background:var(--g);color:#151000!important}.kcp .btn.o{border:1px solid rgba(255,255,255,.18);color:#fff!important;background:rgba(255,255,255,.04)}\n.kcp .btns{display:flex;flex-wrap:wrap;gap:10px}\n.kcp .fig{display:flex;align-items:center;justify-content:center;gap:16px}.kcp .fig svg{max-width:100%;height:auto}\n.kcp .fig .cap{font-size:12.5px;color:var(--t2)}\n.kcp .tb{overflow-x:auto;border:1px solid var(--ln);border-radius:16px}.kcp table{width:100%;border-collapse:collapse;font-size:14px;margin:0}\n.kcp th,.kcp td{padding:11px 14px;text-align:left;border:0;border-bottom:1px solid var(--ln);vertical-align:top;background:none;color:var(--t)}\n.kcp tbody th{width:34%;color:var(--t2);font-weight:600}.kcp thead th{background:var(--p2);color:var(--c);font-size:12px;letter-spacing:.06em;text-transform:uppercase}\n.kcp .sw{display:inline-block;width:14px;height:14px;border-radius:4px;border:1px solid rgba(255,255,255,.3);vertical-align:-2px;margin-right:6px}\n.kcp .two{display:grid;grid-template-columns:1fr 1fr;gap:14px}.kcp ul.l{margin:0;padding:0;list-style:none}.kcp ul.l li{padding:7px 0 7px 26px;position:relative;color:var(--t2);font-size:14.5px;border-bottom:1px dashed var(--ln)}.kcp ul.l li:last-child{border:0}\n.kcp ul.ok li:before{content:\"\u2713\";position:absolute;left:4px;color:#3ddc97;font-weight:900}.kcp ul.no li:before{content:\"\u2715\";position:absolute;left:4px;color:#ff7a7a;font-weight:900}\n.kcp .box h3{margin:0 0 6px;font-size:15px;color:#fff}\n.kcp details{background:var(--p);border:1px solid var(--ln);border-radius:14px;padding:13px 16px;margin:8px 0}.kcp summary{cursor:pointer;font-weight:700;font-size:14.5px}.kcp details p{color:var(--t2);font-size:14px;margin:10px 0 2px}\n.kcp .cta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:34px;padding:22px;border-radius:20px;background:linear-gradient(135deg,rgba(245,196,81,.16),var(--p));border:1px solid rgba(245,196,81,.35)}\n.kcp .cta b{font-size:17px;color:#fff;display:block}.kcp .cta span{font-size:13.5px;color:var(--t2)}\n.kcp .rel{display:flex;flex-wrap:wrap;gap:8px}.kcp .rel a{padding:8px 13px;border-radius:999px;border:1px solid var(--ln);background:var(--p);color:#dbe6ff;text-decoration:none;font-size:13.5px}.kcp .rel a:hover{border-color:var(--c)}\n.kcp .src{font-size:12.5px;color:rgba(226,233,255,.5);margin-top:26px}\n.kcp .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}.kcp .card{display:block;padding:16px;border-radius:18px;background:var(--p);border:1px solid var(--ln);text-decoration:none;color:var(--t)!important;transition:.15s}.kcp .card:hover{border-color:var(--c);transform:translateY(-2px)}\n.kcp .card .f{font-size:26px}.kcp .card b{display:block;margin:6px 0 2px;font-size:15px}.kcp .card span{font-size:12.5px;color:var(--t2)}\n@media(max-width:760px){.kcp .qa,.kcp .two{grid-template-columns:1fr}.kcp .cta{flex-direction:column;align-items:flex-start}.kcp .fig{flex-direction:column}}<\/style><main class=\"kcp\"><div class=\"in\">\n<nav class=\"bc\" aria-label=\"breadcrumb\"><a href=\"\/\">K-BLACK<\/a> \u203a <a href=\"\/kich-thuoc-anh-the\/\">K\u00edch th\u01b0\u1edbc \u1ea3nh th\u1ebb, visa<\/a> \u203a \u1ea2nh th\u1ebb 3\u00d74<\/nav>\n<h1>\u1ea2nh th\u1ebb 3\u00d74: k\u00edch th\u01b0\u1edbc, m\u00e0u n\u1ec1n & c\u00e1ch l\u00e0m \u0111\u00fang chu\u1ea9n<\/h1>\n<p class=\"lead\">\u1ea2nh 3\u00d74 (r\u1ed9ng 3 cm \u2013 cao 4 cm) l\u00e0 c\u1ee1 \u1ea3nh d\u00f9ng nhi\u1ec1u nh\u1ea5t cho h\u1ed3 s\u01a1 xin vi\u1ec7c, s\u01a1 y\u1ebfu l\u00fd l\u1ecbch, th\u1ebb sinh vi\u00ean, b\u1eb1ng c\u1ea5p \u2013 ch\u1ee9ng ch\u1ec9. Th\u00f4ng s\u1ed1 th\u00f4ng d\u1ee5ng, l\u1ed7i hay g\u1eb7p v\u00e0 c\u00f4ng c\u1ee5 l\u00e0m \u1ea3nh 3\u00d74 mi\u1ec5n ph\u00ed. C\u1eadp nh\u1eadt 10\/2026.<\/p>\n<div class=\"qa\"><div class=\"box ans\"><div class=\"lb\">Tr\u1ea3 l\u1eddi nhanh<\/div><p>\u1ea2nh th\u1ebb 3\u00d74 r\u1ed9ng 3 cm, cao 4 cm (30 \u00d7 40 mm). \u0110\u1ea7u (c\u1eb1m \u2192 \u0111\u1ec9nh t\u00f3c) kho\u1ea3ng 22\u201327 mm, nh\u00ecn th\u1eb3ng, r\u00f5 tr\u00e1n v\u00e0 hai tai. N\u1ec1n tr\u1eafng l\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t; m\u1ed9t s\u1ed1 n\u01a1i y\u00eau c\u1ea7u n\u1ec1n xanh \u2013 l\u00e0m theo h\u01b0\u1edbng d\u1eabn c\u1ee7a n\u01a1i nh\u1eadn h\u1ed3 s\u01a1.<\/p><div class=\"btns\"><a class=\"btn g\" href=\"\/anh-the-online\/?chuan=vn34\">\ud83d\udcf8 L\u00e0m \u1ea3nh th\u1ebb 3\u00d74 online mi\u1ec5n ph\u00ed<\/a><\/div><\/div>\n<div class=\"box fig\"><svg viewBox=\"-30 -6 236 198\" width=\"236\" role=\"img\" aria-label=\"S\u01a1 \u0111\u1ed3 khung \u1ea3nh 3 \u00d7 4 cm (r\u1ed9ng \u00d7 cao)\"><defs><clipPath id=\"kcf\"><rect x=\"0\" y=\"0\" width=\"126\" height=\"168\" rx=\"4\"\/><\/clipPath><\/defs><rect x=\"0\" y=\"0\" width=\"126\" height=\"168\" rx=\"4\" fill=\"#ffffff\"\/><g clip-path=\"url(#kcf)\">\n<rect x=\"48.0\" y=\"109.2\" width=\"30.0\" height=\"33.8\" fill=\"#b4bccb\"\/><path d=\"M-88.2 172.0 C-63.0 135.0 12.6 131.0 63.0 131.0 C113.4 131.0 189.0 135.0 214.2 172.0Z\" fill=\"#9aa3b5\"\/><ellipse cx=\"63.0\" cy=\"65.8\" rx=\"33.7\" ry=\"53.5\" fill=\"#c9cfdb\"\/><\/g>\n<line x1=\"-6\" x2=\"132.0\" y1=\"14.3\" y2=\"14.3\" stroke=\"#f5c451\" stroke-dasharray=\"4 3\"\/><line x1=\"-6\" x2=\"132.0\" y1=\"117.2\" y2=\"117.2\" stroke=\"#f5c451\" stroke-dasharray=\"4 3\"\/>\n<line x1=\"140.0\" x2=\"140.0\" y1=\"14.3\" y2=\"117.2\" stroke=\"#f5c451\"\/><text x=\"144.0\" y=\"70.8\" fill=\"#f5c451\" font-size=\"12\" font-weight=\"700\" font-family=\"sans-serif\">22\u201327 mm<\/text>\n<text x=\"63.0\" y=\"186.0\" fill=\"#9fb0d8\" font-size=\"11\" text-anchor=\"middle\" font-family=\"sans-serif\">30 mm<\/text><text x=\"-10\" y=\"84.0\" fill=\"#9fb0d8\" font-size=\"11\" text-anchor=\"middle\" font-family=\"sans-serif\" transform=\"rotate(-90 -10 84.0)\">40 mm<\/text><\/svg><\/div><\/div>\n<h2>Th\u00f4ng s\u1ed1 \u1ea3nh th\u1ebb 3\u00d74<\/h2><div class=\"tb\"><table><tbody><tr><th scope=\"row\">K\u00edch th\u01b0\u1edbc<\/th><td>3 \u00d7 4 cm (r\u1ed9ng 3 \u2013 cao 4) \u00b7 30 \u00d7 40 mm<\/td><\/tr><tr><th scope=\"row\">\u0110\u1ed9 ph\u00e2n gi\u1ea3i \u0111\u1ec3 in<\/th><td>354 \u00d7 472 \u0111i\u1ec3m \u1ea3nh \u1edf 300 dpi<\/td><\/tr><tr><th scope=\"row\">Chi\u1ec1u cao \u0111\u1ea7u<\/th><td>Kho\u1ea3ng 22\u201327 mm, ch\u1eeba kho\u1ea3ng tr\u1ed1ng nh\u1ecf tr\u00ean \u0111\u1ec9nh t\u00f3c<\/td><\/tr><tr><th scope=\"row\">M\u00e0u n\u1ec1n<\/th><td><span class=\"sw\" style=\"background:#ffffff\"><\/span>Tr\u1eafng (ph\u1ed5 bi\u1ebfn) ho\u1eb7c xanh nh\u1ea1t \u2013 theo y\u00eau c\u1ea7u n\u01a1i nh\u1eadn<\/td><\/tr><tr><th scope=\"row\">T\u01b0 th\u1ebf<\/th><td>Nh\u00ecn th\u1eb3ng, vai ngang, mi\u1ec7ng kh\u00e9p, kh\u00f4ng nghi\u00eang \u0111\u1ea7u<\/td><\/tr><tr><th scope=\"row\">Trang ph\u1ee5c<\/th><td>\u00c1o c\u00f3 c\u1ed5, m\u00e0u kh\u00e1c m\u00e0u n\u1ec1n (n\u1ec1n tr\u1eafng th\u00ec tr\u00e1nh \u00e1o tr\u1eafng)<\/td><\/tr><tr><th scope=\"row\">Th\u1eddi gian ch\u1ee5p<\/th><td>N\u00ean d\u00f9ng \u1ea3nh ch\u1ee5p trong v\u00f2ng 6 th\u00e1ng<\/td><\/tr><\/tbody><\/table><\/div>\n<h2>\u1ea2nh th\u1ebb 3\u00d74 d\u00f9ng cho gi\u1ea5y t\u1edd n\u00e0o?<\/h2><div class=\"tb\"><table><tbody><tr><th scope=\"row\">H\u1ed3 s\u01a1 xin vi\u1ec7c<\/th><td>S\u01a1 y\u1ebfu l\u00fd l\u1ecbch, \u0111\u01a1n d\u1ef1 tuy\u1ec3n, h\u1ed3 s\u01a1 nh\u00e2n s\u1ef1<\/td><\/tr><tr><th scope=\"row\">H\u1ecdc t\u1eadp<\/th><td>Th\u1ebb h\u1ecdc sinh \u2013 sinh vi\u00ean, h\u1ed3 s\u01a1 nh\u1eadp h\u1ecdc, h\u1ed3 s\u01a1 thi<\/td><\/tr><tr><th scope=\"row\">B\u1eb1ng c\u1ea5p, ch\u1ee9ng ch\u1ec9<\/th><td>H\u1ed3 s\u01a1 thi ch\u1ee9ng ch\u1ec9, c\u1ea5p b\u1eb1ng, th\u1ebb d\u1ef1 thi<\/td><\/tr><tr><th scope=\"row\">Th\u1ebb ra v\u00e0o<\/th><td>Th\u1ebb nh\u00e2n vi\u00ean, th\u1ebb th\u00e0nh vi\u00ean (tu\u1ef3 n\u01a1i)<\/td><\/tr><\/tbody><\/table><\/div>\n<h2>Ch\u1ee5p sao cho \u0111\u1ea1t ngay l\u1ea7n \u0111\u1ea7u<\/h2><div class=\"two\"><div class=\"box\"><h3>N\u00ean<\/h3><ul class=\"l ok\"><li>Nh\u00ecn th\u1eb3ng \u1ed1ng k\u00ednh, vai ngang<\/li><li>\u00c1nh s\u00e1ng \u0111\u1ec1u hai b\u00ean m\u1eb7t, kh\u00f4ng b\u00f3ng tr\u00ean n\u1ec1n<\/li><li>V\u00e9n t\u00f3c \u0111\u1ec3 l\u1ed9 tr\u00e1n v\u00e0 hai tai<\/li><li>\u1ea2nh n\u00e9t, kh\u00f4ng filter, kh\u00f4ng l\u00e0m m\u1ecbn da qu\u00e1 tay<\/li><\/ul><\/div><div class=\"box\"><h3>L\u1ed7i hay b\u1ecb tr\u1ea3 h\u1ed3 s\u01a1<\/h3><ul class=\"l no\"><li>C\u1eaft t\u1eeb \u1ea3nh selfie n\u00ean m\u1eb7t m\u00e9o, m\u0169i to<\/li><li>\u0110\u1ea7u qu\u00e1 nh\u1ecf ho\u1eb7c s\u00e1t m\u00e9p tr\u00ean<\/li><li>N\u1ec1n c\u00f3 b\u00f3ng \u0111\u1ed5, loang m\u00e0u<\/li><li>\u00c1o c\u00f9ng m\u00e0u n\u1ec1n n\u00ean vai \"ch\u00ecm\" v\u00e0o n\u1ec1n<\/li><\/ul><\/div><\/div>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2><details><summary>\u1ea2nh 3x4 l\u00e0 bao nhi\u00eau cm, bao nhi\u00eau pixel?<\/summary><p>\u1ea2nh 3\u00d74 r\u1ed9ng 3 cm, cao 4 cm (30 \u00d7 40 mm). \u0110\u1ec3 in s\u1eafc n\u00e9t \u1edf 300 dpi, file c\u1ea7n t\u1ed1i thi\u1ec3u 354 \u00d7 472 \u0111i\u1ec3m \u1ea3nh.<\/p><\/details><details><summary>\u1ea2nh 3x4 n\u1ec1n tr\u1eafng hay n\u1ec1n xanh?<\/summary><p>N\u1ec1n tr\u1eafng \u0111\u01b0\u1ee3c d\u00f9ng ph\u1ed5 bi\u1ebfn nh\u1ea5t. M\u1ed9t s\u1ed1 tr\u01b0\u1eddng, c\u01a1 quan y\u00eau c\u1ea7u n\u1ec1n xanh \u2013 h\u00e3y xem th\u00f4ng b\u00e1o c\u1ee7a n\u01a1i nh\u1eadn h\u1ed3 s\u01a1. C\u00f4ng c\u1ee5 c\u1ee7a K-BLACK \u0111\u1ed5i n\u1ec1n tr\u1eafng\/xanh ch\u1ec9 v\u1edbi 1 ch\u1ea1m.<\/p><\/details><details><summary>\u1ea2nh 3x4 kh\u00e1c \u1ea3nh 4x6 th\u1ebf n\u00e0o?<\/summary><p>\u1ea2nh 4\u00d76 l\u1edbn h\u01a1n, d\u00f9ng cho h\u1ed9 chi\u1ebfu Vi\u1ec7t Nam v\u00e0 nhi\u1ec1u h\u1ed3 s\u01a1 h\u00e0nh ch\u00ednh; \u1ea3nh 3\u00d74 d\u00f9ng cho h\u1ed3 s\u01a1 xin vi\u1ec7c, th\u1ebb, b\u1eb1ng c\u1ea5p. Nhi\u1ec1u b\u1ed9 h\u1ed3 s\u01a1 c\u1ea7n c\u1ea3 hai c\u1ee1 \u2013 c\u00f4ng c\u1ee5 c\u00f3 n\u00fat gh\u00e9p 4\u00d76 + 3\u00d74 tr\u00ean c\u00f9ng m\u1ed9t t\u1edd in 10\u00d715.<\/p><\/details><details><summary>L\u00e0m \u1ea3nh 3x4 online b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i \u0111\u01b0\u1ee3c kh\u00f4ng?<\/summary><p>\u0110\u01b0\u1ee3c. Ch\u1ee5p \u1ea3nh ch\u00ednh di\u1ec7n r\u00f5 m\u1eb7t, m\u1edf c\u00f4ng c\u1ee5 \u1ea3nh th\u1ebb K-BLACK, ch\u1ecdn chu\u1ea9n 3\u00d74: m\u00e1y t\u1ef1 t\u00e1ch n\u1ec1n, c\u0103n \u0111\u1ea7u \u0111\u00fang t\u1ec9 l\u1ec7 v\u00e0 xu\u1ea5t file in 300 dpi. \u1ea2nh x\u1eed l\u00fd ngay tr\u00ean m\u00e1y b\u1ea1n, kh\u00f4ng t\u1ea3i l\u00ean m\u1ea1ng.<\/p><\/details>\n<div class=\"cta\"><div><b>C\u1ea7n \u1ea3nh th\u1ebb 3\u00d74 \u0111\u1eb9p, \u0111\u1ea1t chu\u1ea9n ngay?<\/b><span>Ch\u1ee5p t\u1ea1i K-BLACK Studio \u00b7 \u0111\u00e8n chuy\u00ean nghi\u1ec7p \u00b7 c\u0103n chu\u1ea9n 3 \u00d7 4 cm \u00b7 c\u00f3 b\u1ea3n n\u1ec1n tr\u1eafng & n\u1ec1n xanh \u00b7 Vinhomes Grand Park, Th\u1ee7 \u0110\u1ee9c<\/span><\/div><div class=\"btns\"><a class=\"btn g\" href=\"\/chup-anh-the-passport-visa\/\">\u0110\u1eb7t l\u1ecbch t\u1eeb 150K \u203a<\/a><a class=\"btn o\" href=\"\/anh-the-online\/?chuan=vn34\">T\u1ef1 l\u00e0m online<\/a><\/div><\/div>\n<h2>Chu\u1ea9n \u1ea3nh kh\u00e1c<\/h2><div class=\"rel\"><a href=\"\/kich-thuoc-anh-the\/ho-chieu-viet-nam\/\">\ud83c\uddfb\ud83c\uddf3 H\u1ed9 chi\u1ebfu VN 4\u00d76<\/a><a href=\"\/kich-thuoc-anh-the\/anh-the-2x3\/\">\u1ea2nh th\u1ebb 2\u00d73<\/a><a href=\"\/kich-thuoc-anh-the\/visa-my\/\">\ud83c\uddfa\ud83c\uddf8 Visa M\u1ef9<\/a><a href=\"\/kich-thuoc-anh-the\/visa-han-quoc\/\">\ud83c\uddf0\ud83c\uddf7 Visa H\u00e0n Qu\u1ed1c<\/a><a href=\"\/kich-thuoc-anh-the\/visa-nhat-ban\/\">\ud83c\uddef\ud83c\uddf5 Visa Nh\u1eadt<\/a><a href=\"\/kich-thuoc-anh-the\/visa-schengen\/\">\ud83c\uddea\ud83c\uddfa Visa Schengen<\/a><a href=\"\/kich-thuoc-anh-the\/visa-trung-quoc\/\">\ud83c\udde8\ud83c\uddf3 Visa Trung Qu\u1ed1c<\/a><\/div>\n<p class=\"src\">Th\u00f4ng s\u1ed1 th\u00f4ng d\u1ee5ng cho \u1ea3nh th\u1ebb 3\u00d74 t\u1ea1i Vi\u1ec7t Nam. M\u1ed7i tr\u01b0\u1eddng, doanh nghi\u1ec7p hay c\u01a1 quan c\u00f3 th\u1ec3 c\u00f3 y\u00eau c\u1ea7u ri\u00eang (m\u00e0u n\u1ec1n, s\u1ed1 l\u01b0\u1ee3ng, ghi t\u00ean sau \u1ea3nh) \u2013 h\u00e3y ki\u1ec3m tra th\u00f4ng b\u00e1o c\u1ee7a n\u01a1i nh\u1eadn h\u1ed3 s\u01a1 tr\u01b0\u1edbc khi n\u1ed9p.<\/p>\n<\/div><\/main><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"\u1ea2nh 3x4 l\u00e0 bao nhi\u00eau cm, bao nhi\u00eau pixel?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u1ea2nh 3\u00d74 r\u1ed9ng 3 cm, cao 4 cm (30 \u00d7 40 mm). \u0110\u1ec3 in s\u1eafc n\u00e9t \u1edf 300 dpi, file c\u1ea7n t\u1ed1i thi\u1ec3u 354 \u00d7 472 \u0111i\u1ec3m \u1ea3nh.\"}},{\"@type\":\"Question\",\"name\":\"\u1ea2nh 3x4 n\u1ec1n tr\u1eafng hay n\u1ec1n xanh?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"N\u1ec1n tr\u1eafng \u0111\u01b0\u1ee3c d\u00f9ng ph\u1ed5 bi\u1ebfn nh\u1ea5t. M\u1ed9t s\u1ed1 tr\u01b0\u1eddng, c\u01a1 quan y\u00eau c\u1ea7u n\u1ec1n xanh \u2013 h\u00e3y xem th\u00f4ng b\u00e1o c\u1ee7a n\u01a1i nh\u1eadn h\u1ed3 s\u01a1. C\u00f4ng c\u1ee5 c\u1ee7a K-BLACK \u0111\u1ed5i n\u1ec1n tr\u1eafng\/xanh ch\u1ec9 v\u1edbi 1 ch\u1ea1m.\"}},{\"@type\":\"Question\",\"name\":\"\u1ea2nh 3x4 kh\u00e1c \u1ea3nh 4x6 th\u1ebf n\u00e0o?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u1ea2nh 4\u00d76 l\u1edbn h\u01a1n, d\u00f9ng cho h\u1ed9 chi\u1ebfu Vi\u1ec7t Nam v\u00e0 nhi\u1ec1u h\u1ed3 s\u01a1 h\u00e0nh ch\u00ednh; \u1ea3nh 3\u00d74 d\u00f9ng cho h\u1ed3 s\u01a1 xin vi\u1ec7c, th\u1ebb, b\u1eb1ng c\u1ea5p. Nhi\u1ec1u b\u1ed9 h\u1ed3 s\u01a1 c\u1ea7n c\u1ea3 hai c\u1ee1 \u2013 c\u00f4ng c\u1ee5 c\u00f3 n\u00fat gh\u00e9p 4\u00d76 + 3\u00d74 tr\u00ean c\u00f9ng m\u1ed9t t\u1edd in 10\u00d715.\"}},{\"@type\":\"Question\",\"name\":\"L\u00e0m \u1ea3nh 3x4 online b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i \u0111\u01b0\u1ee3c kh\u00f4ng?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u0110\u01b0\u1ee3c. Ch\u1ee5p \u1ea3nh ch\u00ednh di\u1ec7n r\u00f5 m\u1eb7t, m\u1edf c\u00f4ng c\u1ee5 \u1ea3nh th\u1ebb K-BLACK, ch\u1ecdn chu\u1ea9n 3\u00d74: m\u00e1y t\u1ef1 t\u00e1ch n\u1ec1n, c\u0103n \u0111\u1ea7u \u0111\u00fang t\u1ec9 l\u1ec7 v\u00e0 xu\u1ea5t file in 300 dpi. \u1ea2nh x\u1eed l\u00fd ngay tr\u00ean m\u00e1y b\u1ea1n, kh\u00f4ng t\u1ea3i l\u00ean m\u1ea1ng.\"}}]},{\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"K-BLACK\",\"item\":\"https:\/\/kblack.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"K\u00edch th\u01b0\u1edbc \u1ea3nh th\u1ebb, visa\",\"item\":\"https:\/\/kblack.vn\/kich-thuoc-anh-the\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"\u1ea2nh th\u1ebb 3\u00d74\",\"item\":\"https:\/\/kblack.vn\/kich-thuoc-anh-the\/anh-the-3x4\/\"}]},{\"@type\":\"HowTo\",\"name\":\"C\u00e1ch l\u00e0m \u1ea3nh th\u1ebb 3\u00d74 \u0111\u00fang chu\u1ea9n\",\"step\":[{\"@type\":\"HowToStep\",\"text\":\"Ch\u1ee5p \u1ea3nh ch\u00ednh di\u1ec7n, \u00e1nh s\u00e1ng \u0111\u1ec1u, th\u1ea5y c\u1ea3 vai.\"},{\"@type\":\"HowToStep\",\"text\":\"M\u1edf c\u00f4ng c\u1ee5 \u1ea3nh th\u1ebb K-BLACK, ch\u1ecdn chu\u1ea9n \u1ea2nh th\u1ebb 3\u00d74.\"},{\"@type\":\"HowToStep\",\"text\":\"Ch\u1ecdn n\u1ec1n tr\u1eafng ho\u1eb7c xanh, ki\u1ec3m tra \u0111i\u1ec3m chu\u1ea9n r\u1ed3i t\u1ea3i \u1ea3nh ho\u1eb7c t\u1edd in 300 dpi.\"}]}]}<\/script><!--\/KBCP-->\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>\u1ea2nh th\u1ebb 3\u00d74 (30\u00d740 mm) cho h\u1ed3 s\u01a1 xin vi\u1ec7c, th\u1ebb sinh vi\u00ean, b\u1eb1ng c\u1ea5p: k\u00edch th\u01b0\u1edbc, chi\u1ec1u cao \u0111\u1ea7u, m\u00e0u n\u1ec1n, l\u1ed7i hay g\u1eb7p v\u00e0 c\u00e1ch l\u00e0m \u1ea3nh 3\u00d74 online mi\u1ec5n ph\u00ed.<\/p>","protected":false},"author":1,"featured_media":0,"parent":6392,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-7311","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/kblack.vn\/en\/wp-json\/wp\/v2\/pages\/7311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kblack.vn\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/kblack.vn\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/kblack.vn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kblack.vn\/en\/wp-json\/wp\/v2\/comments?post=7311"}],"version-history":[{"count":0,"href":"https:\/\/kblack.vn\/en\/wp-json\/wp\/v2\/pages\/7311\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/kblack.vn\/en\/wp-json\/wp\/v2\/pages\/6392"}],"wp:attachment":[{"href":"https:\/\/kblack.vn\/en\/wp-json\/wp\/v2\/media?parent=7311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}