{"id":5497,"date":"2024-10-16T15:43:00","date_gmt":"2024-10-16T15:43:00","guid":{"rendered":"https:\/\/podpisano-new.local\/?p=5497"},"modified":"2025-11-21T12:39:28","modified_gmt":"2025-11-21T11:39:28","slug":"weryfikacja-kwalifikowanego-podpisu-elektronicznego-jak-sprawdzic-czy-jest-autentyczny","status":"publish","type":"post","link":"https:\/\/podpisano.pl\/en\/weryfikacja-kwalifikowanego-podpisu-elektronicznego-jak-sprawdzic-czy-jest-autentyczny\/","title":{"rendered":"Verification of a qualified electronic signature: How to verify if it is authentic?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5497\" class=\"elementor elementor-5497\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dc68e6e e-con-full e-flex e-con e-child\" data-id=\"dc68e6e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-bb58e09 e-con-full e-flex e-con e-child\" data-id=\"bb58e09\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5c1d5b0 elementor-widget elementor-widget-text-editor\" data-id=\"5c1d5b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">A qualified signature is the digital equivalent of a traditional handwritten signature, which has the same legal force. However, in the world of electronic documents, the question arises: how can we be sure that the signature on the received file is valid and authentic? In this article, we will look at several ways to verify a qualified electronic signature.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23011f6 elementor-widget elementor-widget-heading\" data-id=\"23011f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Visual inspection of the document\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c123ecb elementor-widget elementor-widget-text-editor\" data-id=\"c123ecb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The first step may be to check whether the document contains a visible electronic signature, provided that the signer has used a graphic visualization of his signature. In this case, the signature is marked with a special icon or signature field. If you open the document in Adobe Reader DC, when you click on the graphic symbol you will see detailed information about the signature, such as:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Details of the signatory (name, surname, certificate number)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Date and time of signature<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Name of the trust service provider that issued the certificate<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Certificate validity status<\/span><\/li><\/ul><p>\u00a0<\/p><p><span style=\"font-weight: 400;\">It is very common that in a signed document there is no graphic visualization, which does not mean that it is not signed. The electronic file contains encrypted <\/span><span style=\"font-weight: 400;\">information identifying its owner and data, the so-called public key.\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-303fe7a e-con-full e-flex e-con e-child\" data-id=\"303fe7a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c497906 elementor-widget elementor-widget-heading\" data-id=\"c497906\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Use of specialized software<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-378dd38 elementor-widget elementor-widget-text-editor\" data-id=\"378dd38\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Most of the publicly available programs in which you can preview a signed PDF document do not work with qualified signatures. Only Adobe Acrobat Reader DCpossesses built-in tools for verifying electronic signatures. When you open a signed document, the program automatically checks the validity of the signature and displays an appropriate message. A green checkmark usually indicates that the signature is valid, while a yellow checkmark indicates that there was a problem with its verification.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/p><p><span style=\"font-weight: 400;\">In addition, issuers of qualified signatures offer their own software to verify the signatures submitted.\u00a0<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a03da6a e-con-full e-flex e-con e-child\" data-id=\"a03da6a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e49a7ce elementor-widget elementor-widget-heading\" data-id=\"e49a7ce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Use of dedicated web services\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b95263f elementor-widget elementor-widget-text-editor\" data-id=\"b95263f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Many state institutions offer free online services to verify electronic signatures. All you have to do is upload a signed document to the site, and the system will automatically check its authenticity and display a detailed report.\u00a0<\/span><\/p><p>\u00a0<\/p><p>See:\u00a0\u00a0<a href=\"https:\/\/podpisano.pl\/en\/w-jaki-sposob-mozna-potwierdzic-waznosc-kwalifikowanego-podpisu-elektronicznego-w-przeslanym-dokumencie\/\">How can I confirm the validity of a qualified electronic signature in an uploaded document?<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f994a8 elementor-widget elementor-widget-text-editor\" data-id=\"3f994a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Verification of a qualified electronic signature is a simple process that can be done in several ways. This allows us to be sure that the document we receive is authentic and has not been modified after signing. Remember that if you have any doubts about the validity of the signature, it is always a good idea to consult the certificate issuer or an electronic signature specialist.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-eb890d7 e-flex e-con-boxed e-con e-child\" data-id=\"eb890d7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7a35db0 elementor-widget-divider--view-line_icon elementor-view-default elementor-widget-divider--element-align-center elementor-widget elementor-widget-divider\" data-id=\"7a35db0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon 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Jednak w \u015bwiecie elektronicznych dokument\u00f3w pojawia si\u0119 pytanie: jak mo\u017cemy mie\u0107 pewno\u015b\u0107, \u017ce podpis na otrzymanym pliku jest wa\u017cny i autentyczny? W tym artykule przyjrzymy si\u0119 kilku sposobom weryfikacji kwalifikowanego podpisu elektronicznego. Wizualna inspekcja dokumentu Pierwszym krokiem mo\u017ce by\u0107 sprawdzenie, czy [&hellip;]<\/p>\n","protected":false},"author":322,"featured_media":5519,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[139],"tags":[296,290,291],"class_list":["post-5497","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-podpisy-kwalifikowane","tag-podpis-elektroniczny","tag-podpis-kwalifikowany","tag-weryfikacja-podpisu-kwalifikowanego"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Weryfikacja kwalifikowanego podpisu elektronicznego: Jak sprawdzi\u0107 czy\u00a0 jest autentyczny? - Podpisano.pl<\/title>\n<meta name=\"description\" content=\"Podpis kwalifikowany to cyfrowy odpowiednik tradycyjnego podpisu odr\u0119cznego, kt\u00f3ry posiada tak\u0105 sam\u0105 moc prawn\u0105. 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