{"id":46,"date":"2021-06-19T05:28:42","date_gmt":"2021-06-19T05:28:42","guid":{"rendered":"https:\/\/codesigncert.com\/blognew\/mac-osx-code-signing\/"},"modified":"2026-07-24T13:40:18","modified_gmt":"2026-07-24T13:40:18","slug":"mac-osx-code-signing","status":"publish","type":"post","link":"https:\/\/codesigncert.com\/blog\/mac-osx-code-signing","title":{"rendered":"Code Signing in Mac OSX \u2013 Sign Your File in Minutes"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 ez-toc-wrap-right counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"#\" data-href=\"https:\/\/codesigncert.com\/blog\/mac-osx-code-signing\/#Code_Signing_in_Mac_OS_X_Leopard_and_Snow_Leopard\" >Code Signing in Mac OS X Leopard and Snow Leopard:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"#\" data-href=\"https:\/\/codesigncert.com\/blog\/mac-osx-code-signing\/#Signature_Verification\" >Signature Verification<\/a><\/li><\/ul><\/nav><\/div>\n<div class=\"col-lg-12 mb-3 p-2\">\n<p>There is no doubt in this fact that Codesign certificate protects software from being tampered and also gives confidence about the app\/software that it is maintained by <strong>Certificate Authority<\/strong>.&nbsp;<\/p>\n<p>You have some document to sign with Codesign certificate in <strong>MAC OSX<\/strong> but don&rsquo;t know how to do it. Here is the guide for you. Now sign your file in MAC OSX in a minute.&nbsp;<\/p>\n<p>Before we begin, please make an <strong>IMPORTANT NOTE<\/strong>:<\/p>\n<p>THERE ARE SOME CHANGES MADE BY APPLE IN SETTINGS OF GATEKEEPER. THIS MEANS THE WAY OSX HANDLES THE CERTIFICATES HAS CHANGED FROM OTHER NON-APPLE VENDOR AND GUIDES THE SYSTEM TO PROHIBIT CERTIFICATES NOT ISSUED BY APPLE. AFTER DECADES OF ALL APPLE OPERATING SYSTEMS ARE ABLE TO RECOGNIZE OTHER BIG CERTIFICATE AUTHORITIES BUT UNFORTUNATELY THERE IS NO CHANGE IN THE DEFAULT SETTING WHICH CAN ALLOW CERTIFICATES FROM OTHER CERTIFICATE AUTHORITIES. DUE TO THIS REASON, WE NO LONGER CLAIM WHETHER OTHER CA&rsquo;S CERTIFICATES WILL WORK BE SUPPORTED BY OSX NATIVELY OR NOT. NEVERTHELESS IT <strong>SHOULD<\/strong> SUPPORT JAVA ON OSX PLATFORM.&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Code_Signing_in_Mac_OS_X_Leopard_and_Snow_Leopard\"><\/span>Code Signing in <strong>Mac OS X<\/strong> Leopard and Snow Leopard:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>If you have already collected your certificate on Mac then you can find it in Keychain Access Manager. But if you have used another system to collect the certificate, the follow below instructions:&nbsp;<\/p>\n<ul>\n<li>1. First thing is to save the p12 or .pfx file on your Mac&rsquo;s hard disk.&nbsp;<\/li>\n<li>2. Now go to <strong>Applications\/Utilities<\/strong> and start <strong>Keychain Access<\/strong>.&nbsp;<\/li>\n<li>3. Select <strong>File<\/strong> then <strong>Import Items<\/strong> and select PFX\/P12 file.&nbsp;<\/li>\n<li>4. Select &lsquo;login&rsquo; or &lsquo;system&rsquo; for the destination of the certificate.&nbsp;<\/li>\n<li>5. Now <strong>open<\/strong> and <strong>enter&nbsp;<\/strong>the password.&nbsp;<\/li>\n<li>6. Open the terminal window for signing a Mac.app file and type the command below:&nbsp;<\/li>\n<\/ul>\n<p><strong><i>codesign -s &#8220;Company Name&#8221; &#8221; \/Applications\/Utilities\/My App.app&#8221;<\/i><\/strong><\/p>\n<p>Press <strong>Enter<\/strong> and confirm, if prompted. Now when your code is signed, how will you check whether it is successful or not in Mac OS X. You can that with:&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Signature_Verification\"><\/span>Signature Verification<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Signature verification becomes very important part when it is coming from third-party source since the chances of software getting tampered is distorted. With the help of below command you can verify your signature.<\/p>\n<p><strong><i>codesign -v &#8220;\/Applications\/Utilities\/My App.app&#8221;<\/i><\/strong><\/p>\n<p>If you don&rsquo;t any response that means the app\/software is signed and unaltered.&nbsp;<\/p>\n<div style=\"width: 100%; float: left; margin: 30px 0; border: 5px solid #d6d6d6; border-radius: 5px;\">\n<div style=\"width: 100%; float: left; background-color: #108ab3;\">\n<div class=\"container\" style=\"text-align: center;\">\n<div style=\"padding-left: 20px;\">\n<h3 style=\"font-size: 24px; text-decoration: underline; line-height: 30px; color: #ffffff; font-weight: bold; padding: 15px 0;\"><a href=\"https:\/\/codesigncert.com\/comodo-code-signing-certificate\" target=\"_blank\" style=\"color: #fff;\"> Buy Comodo Code Signing Certificate at Only $59 Per Year <\/a><\/h3>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<div class=\"col-lg-12 mt-5 mb-4\">\n<h4 class=\"text-primary mb-4 pb-2 border-bottom\">Related Articles<\/h4>\n<div class=\"row g-4\">\n","protected":false},"excerpt":{"rendered":"<p>There is no doubt in this fact that Codesign certificate protects software from being tampered and also gives confidence about the app\/software that it is maintained by Certificate Authority.  You<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-46","post","type-post","status-publish","format-standard","hentry","category-code-signing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mac OS X Code Signing: What Developers Need to Know<\/title>\n<meta name=\"description\" content=\"How code signing works on macOS, why Gatekeeper checks for it, and what Apple developers need to sign and notarize their apps.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/codesigncert.com\/blog\/mac-osx-code-signing\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" 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