{"id":47346,"date":"2025-10-03T00:34:25","date_gmt":"2025-10-03T00:34:25","guid":{"rendered":"https:\/\/staging.pageloot.com\/uncategorized\/qr-code-print-resolution-guide\/"},"modified":"2026-04-22T13:14:09","modified_gmt":"2026-04-22T13:14:09","slug":"qr-code-print-resolution-guide","status":"publish","type":"post","link":"https:\/\/pageloot.com\/hr\/blog\/qr-code-print-resolution-guide\/","title":{"rendered":"Smjernice za ispis QR kodova visoke rezolucije"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Izgleda li va\u0161 ispisani QR kod profesionalno na zaslonu, ali se ne mo\u017ee skenirati kada se na\u0111e u fizi\u010dkom svijetu? Nedosljedna razlu\u010divost i neto\u010dna veli\u010dina vode\u0107i su uzroci neuspjeha skeniranja, \u0161to mo\u017ee rezultirati uzaludnim marketin\u0161kim tro\u0161kovima i izgubljenim anga\u017emanom kupaca. Ovaj vodi\u010d pru\u017ea tehni\u010dke specifikacije i najbolje prakse potrebne za osiguravanje savr\u0161enog funkcioniranja va\u0161ih kodova na bilo kojem materijalu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Za\u0161to razlu\u010divost definira mogu\u0107nost skeniranja<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Razlu\u010divost QR koda odre\u0111uje koliko lako kamera pametnog telefona mo\u017ee razlikovati pojedina\u010dne crno-bijele module. Kada se kod ispi\u0161e u niskoj razlu\u010divosti, rubovi ovih kvadrata postaju zamu\u0107eni ili pikselizirani, \u0161to skeneru onemogu\u0107uje tuma\u010denje kodiranih podataka. Za profesionalne rezultate uvijek biste trebali te\u017eiti minimalno 300 DPI (to\u010daka po in\u010du). Iako ni\u017ei DPI mo\u017ee izgledati prihvatljivo na digitalnom zaslonu, fizi\u010dki proces ispisa zahtijeva mnogo ve\u0107u razinu detalja za odr\u017eavanje o\u0161trih granica izme\u0111u modula.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kako biste u potpunosti izbjegli rizik od pikselizacije, trebali biste dati prednost vektorskim formatima datoteka u odnosu na rasterske slike. Vektorske datoteke, kao \u0161to su SVG, EPS ili PDF, matemati\u010dki su definirane, \u0161to zna\u010di da se mogu skalirati na bilo koju veli\u010dinu \u2013 od po\u0161tanske marke do jumbo plakata \u2013 bez gubitka jasno\u0107e. Ako morate koristiti rasterske formate poput PNG ili JPG, osigurajte da je izvorna datoteka visoke razlu\u010divosti i nikada ne poku\u0161avajte pove\u0107ati malu sliku. Prije nego \u0161to finalizirate svoj dizajn za masovnu proizvodnju, korisno je koristiti <a href=\"https:\/\/pageloot.com\/hr\/blog\/qr-code-print-quality-checker\/\">provjeru kvalitete ispisa QR koda<\/a> kako biste provjerili jesu li va\u0161i digitalni resursi u skladu s profesionalnim standardima.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Odre\u0111ivanje fizi\u010dke veli\u010dine za razli\u010dite materijale<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Fizi\u010dke dimenzije va\u0161eg QR koda moraju biti izravno proporcionalne udaljenosti s koje o\u010dekujete da \u0107e ga korisnici skenirati. Industrijski standardna smjernica je omjer udaljenosti skeniranja 10:1, \u0161to sugerira da bi \u0161irina koda trebala biti pribli\u017eno 1\/10 udaljenosti skeniranja. Na primjer, ako se o\u010dekuje da \u0107e potro\u0161a\u010d skenirati plakat s udaljenosti od 20 in\u010da, QR kod bi trebao biti \u0161irok najmanje 2 in\u010da kako bi ga standardna kamera pametnog telefona lako uhvatila.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Materijal i slu\u010daj upotrebe tako\u0111er diktiraju minimalnu pouzdanu veli\u010dinu. Dok kod na posjetnici mo\u017ee biti relativno malen jer se dr\u017ei blizu o\u010diju, pakiranje i signalizacija zahtijevaju ve\u0107u povr\u0161inu kako bi ostali funkcionalni. Detaljnije smjernice mo\u017eete prona\u0107i u na\u0161em \u010dlanku o <a href=\"https:\/\/pageloot.com\/hr\/blog\/qr-code-sizing-for-different-print-materials\/\">Veli\u010dina QR koda za razli\u010dite materijale za ispis<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"wp-block-table__content\">\n<thead>\n<tr>\n<th>Kategorija materijala<\/th>\n<th>Preporu\u010dena minimalna veli\u010dina<\/th>\n<th>Tipi\u010dna udaljenost skeniranja<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Posjetnice<\/td>\n<td>0,8 x 0,8 in\u010da (2 cm)<\/td>\n<td>4\u20138 in\u010da<\/td>\n<\/tr>\n<tr>\n<td>Letci i bro\u0161ure<\/td>\n<td>1,2 x 1,2 in\u010da (3 cm)<\/td>\n<td>12\u201320 in\u010da<\/td>\n<\/tr>\n<tr>\n<td>Pakiranje proizvoda<\/td>\n<td>1,0 x 1,0 in\u010da (2,5 cm)<\/td>\n<td>10 in\u010da<\/td>\n<\/tr>\n<tr>\n<td>Izlog trgovine<\/td>\n<td>2,0 x 2,0 in\u010da (5 cm)<\/td>\n<td>20+ in\u010da<\/td>\n<\/tr>\n<tr>\n<td>Panoi i transparenti<\/td>\n<td>12+ in\u010da (30 cm)<\/td>\n<td>10+ stopa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nadovezuju\u0107i se na temelj veli\u010dine, morate uzeti u obzir i raspored specifi\u010dnog medija. Na primjer, <a href=\"https:\/\/pageloot.com\/hr\/how-to\/business-card-design-qr-code\/\">dizajn posjetnice s QR kodovima<\/a> treba dr\u017eati kod na istaknutom, ravnom podru\u010dju kako bi se izbjeglo da prsti prekriju module ili rubove tijekom skeniranja.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Uravnote\u017eenje gusto\u0107e podataka i jasno\u0107e ispisa<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Osim fizi\u010dke veli\u010dine, gusto\u0107a uzorka igra klju\u010dnu ulogu u mogu\u0107nosti skeniranja. Kada kodirate veliku koli\u010dinu informacija \u2013 kao \u0161to je duga\u010dak URL s vi\u0161e parametara pra\u0107enja \u2013 QR kod stvara gu\u0161\u0107u mre\u017eu s manjim modulima. Ovi si\u0107u\u0161ni kvadrati mnogo su osjetljiviji na pogre\u0161ke u ispisu, kao \u0161to je razlijevanje tinte, \u0161to mo\u017ee premostiti jaz izme\u0111u modula i prekinuti kod.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kako bismo odr\u017eali \u010dist i skeniraju\u0107i dizajn, preporu\u010dujemo kori\u0161tenje <a href=\"https:\/\/pageloot.com\/hr\/qr-code-generator\/\">dinami\u010dni QR kodovi<\/a>. Ovi kodovi pohranjuju kratak, preusmjeravaju\u0107i URL, \u0161to vizualni uzorak \u010dini jednostavnim, a module velikima, bez obzira na duljinu odredi\u0161ne veze. Ako \u017eelite razumjeti kako razli\u010dite vrste informacija utje\u010du na mre\u017eu, mo\u017eete pro\u010ditati vi\u0161e o <a href=\"https:\/\/pageloot.com\/hr\/how-to\/understand-qr-code-data-limits\/\">koliko podataka QR kod mo\u017ee pohraniti<\/a>. Dodatno, kori\u0161tenje vi\u0161e razine ispravljanja pogre\u0161aka (Razina H) omogu\u0107uje kodu da ostane funkcionalan \u010dak i ako je do 30% njegove povr\u0161ine o\u0161te\u0107eno ili zaklonjeno, iako to malo pove\u0107ava gusto\u0107u uzorka. Dublji uvid u ove tehni\u010dke postavke mo\u017eete prona\u0107i u na\u0161em <a href=\"https:\/\/pageloot.com\/hr\/blog\/best-practices-for-qr-code-readability\/\">najbolje prakse za \u010ditljivost QR koda<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/03\/simple-vertical-infographic-white-background-black-text-blue-and-light-grey-a-4154-9019fe8f04b3.webp\" alt=\"infografika o veli\u010dini ispisa QR koda\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Kontrast i zahtjev ISO tihe zone<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kontrast je vizualni motor QR koda; skeneri rade tako \u0161to identificiraju razlike u refleksiji svjetlosti izme\u0111u tamnih modula i svijetle pozadine. Zlatni standard za pouzdanost su crni moduli na bijeloj pozadini, \u0161to pru\u017ea omjer kontrasta 21:1. Ako se odlu\u010dite koristiti boje marke, trebali biste te\u017eiti omjeru kontrasta od najmanje 4,5:1. Izbjegavajte svijetle module na tamnim pozadinama, jer se mnoge starije kamere pametnih telefona i jeftine aplikacije za skeniranje bore s obradom invertiranih boja.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Osim boje, \u201ctiha zona\u201d je obvezan tehni\u010dki zahtjev definiran standardima ISO\/IEC 18004. To je jasan me\u0111uspremni prostor koji okru\u017euje QR kod sa sve \u010detiri strane. Ova margina mora biti \u0161iroka najmanje \u010detiri modula kako bi se sprije\u010dilo da okolna grafika, tekst ili rub materijala ometaju sposobnost skenera da locira kod. Za vi\u0161e o postizanju prave ravnote\u017ee izme\u0111u estetike i funkcije, pogledajte na\u0161 vodi\u010d o <a href=\"https:\/\/pageloot.com\/hr\/blog\/qr-code-color-contrast-best-practices\/\">najbolje prakse za kontrast boja QR koda<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Odabir materijala i zavr\u0161nih obrada za optimalne rezultate<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Povr\u0161ina na koju ispisujete jednako je va\u017ena kao i razlu\u010divost datoteke. Razli\u010dite teksture i zavr\u0161ne obrade me\u0111usobno djeluju sa svjetlom na na\u010dine koji mogu pomo\u0107i ili ometati kameru pametnog telefona. Mat zavr\u0161ne obrade gotovo su uvijek superiornije sjajnim jer raspr\u0161uju svjetlost umjesto da je reflektiraju. Sjajni materijali, poput odre\u0111ene plastike ili metala, \u010desto stvaraju \u201cvru\u0107u to\u010dku\u201d odbljeska koja zasljepljuje le\u0107u kamere i sprje\u010dava uspje\u0161no skeniranje.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Podloga tako\u0111er utje\u010de na to kako se tinta talo\u017ei. Papir je op\u0107enito najpouzdaniji medij, dok tkanina i valoviti karton imaju nepravilne teksture koje mogu iskriviti module. Ako morate ispisivati na teksturiranim ili zakrivljenim povr\u0161inama, poput boca ili odje\u0107e, trebali biste pove\u0107ati fizi\u010dku veli\u010dinu QR koda kako biste nadoknadili te ekolo\u0161ke izazove. Ove \u010dimbenike mo\u017eete dalje istra\u017eiti u na\u0161em detaljnom pregledu <a href=\"https:\/\/pageloot.com\/hr\/blog\/how-printing-techniques-impact-qr-code-scannability\/\">15. kako tehnike ispisa utje\u010du na skeniranje QR koda uvelike ovisi o faktorima kao \u0161to je razlijevanje tinte. Na upijaju\u0107im materijalima poput tkanine ili teksturiranog papira, tinta se mo\u017ee razliti, pro\u0161iruju\u0107i tamne module i smanjuju\u0107i bijele prostore izme\u0111u njih.<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/03\/simple-clean-illustration-square-format-white-background-with-blue-and-light-g-1156-9b9dd2a21217.webp\" alt=\"problemi sa skeniranjem QR materijala\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Spremni za izradu profesionalnog koda visoke razlu\u010divosti?<\/strong> Koristite na\u0161e <a href=\"https:\/\/pageloot.com\/hr\/qr-code-generator\/\">Generator QR kodova<\/a> za dizajniranje kodova u vektorskim formatima poput SVG i PDF kako bi va\u0161i ispisi ostali o\u0161tri u bilo kojoj veli\u010dini.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Testiranje va\u0161ih ispisa na razli\u010ditim ure\u0111ajima<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Prije nego \u0161to nastavite s potpunim ispisom, morate provesti testiranje u stvarnom svijetu. Kod koji se lako skenira na modernom flagship telefonu u dobro osvijetljenom uredu mo\u017ee propasti kada ga skenira stariji ure\u0111aj u tamnom okru\u017eenju ili pod jakim fluorescentnim svjetlima.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>  Ispi\u0161ite jedan probni primjerak na to\u010dnom materijalu i u to\u010dnoj veli\u010dini namijenjenoj za kona\u010dni proizvod.<\/li>\n<li>  Testirajte kod s oba, vrhunskim <a href=\"https:\/\/pageloot.com\/hr\/qr-code-scanner\/\">Skener QR koda<\/a> i ugra\u0111enim aplikacijama kamere raznih iOS i Android ure\u0111aja.<\/li>\n<li>  Provjerite skeniranje iz razli\u010ditih kutova i pod razli\u010ditim svjetlosnim uvjetima kako biste identificirali potencijalne probleme s odbljeskom ili sjenom.<\/li>\n<li>  Osigurajte da je odredi\u0161na poveznica aktivna i optimizirana za mobilne ure\u0111aje radi prakti\u010dnosti korisnika.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pridr\u017eavanje ovih <a href=\"https:\/\/pageloot.com\/hr\/blog\/qr-code-usability-best-practices\/\">ISO\/IEC 18004 standarda upotrebljivosti<\/a> osigurava da va\u0161i QR kodovi nisu samo dekorativni elementi, ve\u0107 pouzdani alati za digitalni anga\u017eman.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u010cesta pitanja<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-097e2b1cf9c5\"><strong class=\"schema-faq-question\">Koji je najpouzdaniji format datoteke za ispis velikih QR kodova?<\/strong> <p class=\"schema-faq-answer\">Najpouzdaniji formati su vektorske datoteke kao \u0161to su SVG, EPS ili PDF. Budu\u0107i da ti formati nisu sastavljeni od piksela, mogu se skalirati na vrlo velike veli\u010dine, kao \u0161to su one potrebne za jumbo plakate ili bannere, bez ikakvog gubitka o\u0161trine ili detalja.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-923b6015efb5\"><strong class=\"schema-faq-question\">Za\u0161to je zavr\u0161na obrada papira va\u017ena za QR kodove?<\/strong> <p class=\"schema-faq-answer\">Zavr\u0161na obrada utje\u010de na to kako se svjetlost odbija od povr\u0161ine. Mat zavr\u0161na obrada je po\u017eeljna jer smanjuje odsjaj, omogu\u0107uju\u0107i kameri da jasno vidi kontrast izme\u0111u modula. Sjajna zavr\u0161na obrada mo\u017ee stvoriti refleksije koje zaklanjaju dijelove koda, \u0161to dovodi do neuspjeha skeniranja u svijetlim okru\u017eenjima.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-ea1e7528167e\"><strong class=\"schema-faq-question\">Koja je apsolutna minimalna veli\u010dina za QR kod?<\/strong> <p class=\"schema-faq-answer\">Dok neki napredni skeneri mogu \u010ditati kodove veli\u010dine samo 1\u00d71 cm, preporu\u010deni minimum za op\u0107u upotrebu je 2\u00d72 cm (0.8\u00d70.8 in\u010da). Ako va\u0161 kod sadr\u017ei veliku koli\u010dinu podataka ili koristi visoku korekciju pogre\u0161aka, trebali biste dodatno pove\u0107ati veli\u010dinu kako biste osigurali da moduli ostanu prepoznatljivi.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>Osigurajte mogu\u0107nost skeniranja ispisivanjem QR kodova na 300 DPI. Saznajte vi\u0161e o preporu\u010denim formatima vektorskih datoteka, omjerima veli\u010dina i izboru materijala za profesionalne rezultate.<\/p>","protected":false},"author":17,"featured_media":50322,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[2635],"tags":[],"class_list":["post-47346","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 v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Guidelines for Printing High-Resolution QR Codes<\/title>\n<meta name=\"description\" content=\"Ensure scannability by printing QR codes at 300 DPI. Learn about recommended vector file formats, sizing ratios, and material choices for professional results.\" \/>\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\/hr\/blog\/qr-code-print-resolution-guide\/\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Guidelines for Printing High-Resolution QR Codes\" \/>\n<meta property=\"og:description\" content=\"Ensure scannability by printing QR codes at 300 DPI. Learn about recommended vector file formats, sizing ratios, and material choices for professional results.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pageloot.com\/hr\/blog\/qr-code-print-resolution-guide\/\" \/>\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=\"2025-10-03T00:34:25+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-22T13:14:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/03\/photorealistic-lifestyle-featured-image-for-an-article-about-printing-high-resol-2775-063a5113297d.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1376\" \/>\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=\"Napisao\/la\" \/>\n\t<meta name=\"twitter:data1\" content=\"Siim T\" \/>\n\t<meta name=\"twitter:label2\" content=\"Procijenjeno vrijeme \u010ditanja\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minuta\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/qr-code-print-resolution-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/qr-code-print-resolution-guide\\\/\"},\"author\":{\"name\":\"Siim T\",\"@id\":\"https:\\\/\\\/pageloot.com\\\/es\\\/#\\\/schema\\\/person\\\/fa28992c2e52546f0812833bac852dfe\"},\"headline\":\"Guidelines for Printing High-Resolution QR Codes\",\"datePublished\":\"2025-10-03T00:34:25+00:00\",\"dateModified\":\"2026-04-22T13:14:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/qr-code-print-resolution-guide\\\/\"},\"wordCount\":1344,\"publisher\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/es\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/qr-code-print-resolution-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pageloot.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/photorealistic-lifestyle-featured-image-for-an-article-about-printing-high-resol-2775-063a5113297d.webp\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"hr\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/qr-code-print-resolution-guide\\\/\",\"url\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/qr-code-print-resolution-guide\\\/\",\"name\":\"Guidelines for Printing High-Resolution QR Codes\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/es\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/qr-code-print-resolution-guide\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/qr-code-print-resolution-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pageloot.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/photorealistic-lifestyle-featured-image-for-an-article-about-printing-high-resol-2775-063a5113297d.webp\",\"datePublished\":\"2025-10-03T00:34:25+00:00\",\"dateModified\":\"2026-04-22T13:14:09+00:00\",\"description\":\"Ensure scannability by printing QR codes at 300 DPI. 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