{"id":78,"date":"2020-07-02T13:56:24","date_gmt":"2020-07-02T13:56:24","guid":{"rendered":"http:\/\/wordpress-dev.library.illinois.edu\/digitization-services\/?page_id=78"},"modified":"2026-01-06T20:04:36","modified_gmt":"2026-01-06T20:04:36","slug":"digital-imaging-best-practices","status":"publish","type":"page","link":"https:\/\/wordpress.library.illinois.edu\/digitization-services\/digital-imaging-best-practices\/","title":{"rendered":"Digital Imaging Best Practices"},"content":{"rendered":"<p>In order to create the best-quality digital surrogates for library materials, we use the following practices when photographing objects and processing images.<\/p>\n<h2>Technical Metadata<\/h2>\n\n  <div id=\"ui_lib_panel\" class=\"shortcode sh-w-full !sh-border !sh-border-gray-300 sh-drop-shadow-sm sh-mb-2\">\n    \n    <div class=\"shortcode sh-w-full sh-px-3 sh-py-1.5 sh-bg-neutral-200 !sh-text-black sh-flex sh-justify-between sh-items-center sh-relative\">\n      <div><span class=\"shortcode sh-text-base sh-font-semibold sh-no-underline\">Text-only Items - Theses, Dissertations, General Stacks<\/span><\/div>\n      <div>\n        <div class=\"sh-flex sh-flex-col\"> \n          <div><span class=\"shortcode sh-text-xs sh-transition sh-duration-500 sh-ease-in-out sh-bg-neutral-200 !sh-text-black !sh-no-underline ui-lib-coll-pan-id1_label\" > expand <\/span><\/div>\n          <div class=\"sh-flex sh-justify-center -sh-mt-1\"><i class=\"shortcode fa-solid fa-caret-down sh-text-xl sh-font-semibold sh-transition sh-duration-500 sh-ease-in-out sh-bg-neutral-200 !sh-text-black !sh-no-underline ui-lib-coll-pan-id1_arrow\" ><\/i> <\/div>\n        <\/div>\n      <\/div>\n      <button type=\"button\" id=\"ui-lib-coll-pan-id1\" class=\"shortcode sh-absolute sh-top-0 sh-left-0 sh-w-full sh-h-full sh-bg-transparent focus:sh-outline-none focus-visible:sh-ring focus-visible:sh-ring-orange-700\" data-toggle=\"ui_lib_collapse\" data-target=\".ui-lib-coll-pan-id1\" aria-controls=\"ui-lib-coll-pan-id1\" aria-expanded=\"false\" title=\"Text-only Items - Theses, Dissertations, General Stacks\"><\/button>\n    <\/div>\n  <div class=\"shortcode sh-text-black sh-block sh-h-auto sh-max-h-0 sh-overflow-hidden sh-transition-max-height sh-duration-500 sh-ease-in-out ui-lib-coll-pan-id1\"  inert>\n      <div class=\"shortcode sh-px-2 sh-py-2\">\n<p><strong>Access Files<\/strong><\/p>\n<ul>\n<li>400 DPI<\/li>\n<li>3000 pixels on long edge<\/li>\n<li>sRGB<\/li>\n<li>8 bit<\/li>\n<li>Exclude target item level target (beginning\/end of volume)<\/li>\n<li>Crop just inside page edge<\/li>\n<li>Create Optimized Character Recognition (OCR) PDF after Quality Control<\/li>\n<\/ul>\n<p><strong>Preservation Files<\/strong><\/p>\n<ul>\n<li>600 DPI<\/li>\n<li>Fixed pixel array<\/li>\n<li>Adobe RGB<\/li>\n<li>16 bit<\/li>\n<li>Include target item level target (beginning\/end of volume)<\/li>\n<li>Crop just inside page edge<\/li>\n<\/ul>\n<\/div><\/div><\/div>\n\n  <div id=\"ui_lib_panel\" class=\"shortcode sh-w-full !sh-border !sh-border-gray-300 sh-drop-shadow-sm sh-mb-2\">\n    \n    <div class=\"shortcode sh-w-full sh-px-3 sh-py-1.5 sh-bg-neutral-200 !sh-text-black sh-flex sh-justify-between sh-items-center sh-relative\">\n      <div><span class=\"shortcode sh-text-base sh-font-semibold sh-no-underline\">Rare Books, Manuscripts, and Archival Items<\/span><\/div>\n      <div>\n        <div class=\"sh-flex sh-flex-col\"> \n          <div><span class=\"shortcode sh-text-xs sh-transition sh-duration-500 sh-ease-in-out sh-bg-neutral-200 !sh-text-black !sh-no-underline ui-lib-coll-pan-id2_label\" > expand <\/span><\/div>\n          <div class=\"sh-flex sh-justify-center -sh-mt-1\"><i class=\"shortcode fa-solid fa-caret-down sh-text-xl sh-font-semibold sh-transition sh-duration-500 sh-ease-in-out sh-bg-neutral-200 !sh-text-black !sh-no-underline ui-lib-coll-pan-id2_arrow\" ><\/i> <\/div>\n        <\/div>\n      <\/div>\n      <button type=\"button\" id=\"ui-lib-coll-pan-id2\" class=\"shortcode sh-absolute sh-top-0 sh-left-0 sh-w-full sh-h-full sh-bg-transparent focus:sh-outline-none focus-visible:sh-ring focus-visible:sh-ring-orange-700\" data-toggle=\"ui_lib_collapse\" data-target=\".ui-lib-coll-pan-id2\" aria-controls=\"ui-lib-coll-pan-id2\" aria-expanded=\"false\" title=\"Rare Books, Manuscripts, and Archival Items\"><\/button>\n    <\/div>\n  <div class=\"shortcode sh-text-black sh-block sh-h-auto sh-max-h-0 sh-overflow-hidden sh-transition-max-height sh-duration-500 sh-ease-in-out ui-lib-coll-pan-id2\"  inert>\n      <div class=\"shortcode sh-px-2 sh-py-2\">\n<p><strong>Access Files<\/strong><\/p>\n<ul>\n<li>400 DPI<\/li>\n<li>3000 pixels on long edge<\/li>\n<li>sRGB<\/li>\n<li>8 bit<\/li>\n<li>Exclude item and page level targets<\/li>\n<li>Crop outside page edge<\/li>\n<li>Include appropriate production note and blank as first two files in each item<\/li>\n<\/ul>\n<p><strong>Preservation Files<\/strong><\/p>\n<ul>\n<li>600 DPI<\/li>\n<li>Fixed pixel array<\/li>\n<li>Adobe RGB<\/li>\n<li>16 bit<\/li>\n<li>Include item and page level targets<\/li>\n<li>Crop outside page edge<\/li>\n<li>Include appropriate production note and blank as first two files in each item<\/li>\n<\/ul>\n<\/div><\/div><\/div>\n\n  <div id=\"ui_lib_panel\" class=\"shortcode sh-w-full !sh-border !sh-border-gray-300 sh-drop-shadow-sm sh-mb-2\">\n    \n    <div class=\"shortcode sh-w-full sh-px-3 sh-py-1.5 sh-bg-neutral-200 !sh-text-black sh-flex sh-justify-between sh-items-center sh-relative\">\n      <div><span class=\"shortcode sh-text-base sh-font-semibold sh-no-underline\">Large Scale Items - Maps, Posters, Blueprints<\/span><\/div>\n      <div>\n        <div class=\"sh-flex sh-flex-col\"> \n          <div><span class=\"shortcode sh-text-xs sh-transition sh-duration-500 sh-ease-in-out sh-bg-neutral-200 !sh-text-black !sh-no-underline ui-lib-coll-pan-id3_label\" > expand <\/span><\/div>\n          <div class=\"sh-flex sh-justify-center -sh-mt-1\"><i class=\"shortcode fa-solid fa-caret-down sh-text-xl sh-font-semibold sh-transition sh-duration-500 sh-ease-in-out sh-bg-neutral-200 !sh-text-black !sh-no-underline ui-lib-coll-pan-id3_arrow\" ><\/i> <\/div>\n        <\/div>\n      <\/div>\n      <button type=\"button\" id=\"ui-lib-coll-pan-id3\" class=\"shortcode sh-absolute sh-top-0 sh-left-0 sh-w-full sh-h-full sh-bg-transparent focus:sh-outline-none focus-visible:sh-ring focus-visible:sh-ring-orange-700\" data-toggle=\"ui_lib_collapse\" data-target=\".ui-lib-coll-pan-id3\" aria-controls=\"ui-lib-coll-pan-id3\" aria-expanded=\"false\" title=\"Large Scale Items - Maps, Posters, Blueprints\"><\/button>\n    <\/div>\n  <div class=\"shortcode sh-text-black sh-block sh-h-auto sh-max-h-0 sh-overflow-hidden sh-transition-max-height sh-duration-500 sh-ease-in-out ui-lib-coll-pan-id3\"  inert>\n      <div class=\"shortcode sh-px-2 sh-py-2\">\n<p><strong>Access Files<\/strong><\/p>\n<ul>\n<li>400 DPI<\/li>\n<li>4000 pixels on long edge<\/li>\n<li>sRGB<\/li>\n<li>8 bit<\/li>\n<li>Exclude item and page level targets<\/li>\n<li>Crop outside page edge<\/li>\n<\/ul>\n<p><strong>Preservation Files<\/strong><\/p>\n<ul>\n<li>400 DPI<\/li>\n<li>Fixed pixel array<\/li>\n<li>Adobe RGB<\/li>\n<li>16 bit<\/li>\n<li>Include target item level target<\/li>\n<li>Crop outside page edge<\/li>\n<\/ul>\n<\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>In order to create the best-quality digital surrogates for library materials, we use the following practices when photographing objects and processing images. Technical Metadata Access Files 400 DPI 3000 pixels on long edge sRGB 8 bit Exclude target item level target (beginning\/end of volume) Crop just inside page edge Create Optimized Character Recognition (OCR) PDF [&hellip;]<\/p>\n","protected":false},"author":621,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-78","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/wordpress.library.illinois.edu\/digitization-services\/wp-json\/wp\/v2\/pages\/78","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.library.illinois.edu\/digitization-services\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wordpress.library.illinois.edu\/digitization-services\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.library.illinois.edu\/digitization-services\/wp-json\/wp\/v2\/users\/621"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.library.illinois.edu\/digitization-services\/wp-json\/wp\/v2\/comments?post=78"}],"version-history":[{"count":4,"href":"https:\/\/wordpress.library.illinois.edu\/digitization-services\/wp-json\/wp\/v2\/pages\/78\/revisions"}],"predecessor-version":[{"id":544,"href":"https:\/\/wordpress.library.illinois.edu\/digitization-services\/wp-json\/wp\/v2\/pages\/78\/revisions\/544"}],"wp:attachment":[{"href":"https:\/\/wordpress.library.illinois.edu\/digitization-services\/wp-json\/wp\/v2\/media?parent=78"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}