{"id":7672,"date":"2025-10-08T16:41:01","date_gmt":"2025-10-08T14:41:01","guid":{"rendered":"https:\/\/podpisano-new.local\/?p=7672"},"modified":"2026-08-18T21:42:26","modified_gmt":"2026-08-18T19:42:26","slug":"kontrasygnata-czy-drugi-podpis-praktyczny-poradnik-dla-pades-xades","status":"publish","type":"post","link":"https:\/\/podpisano.pl\/en\/kontrasygnata-czy-drugi-podpis-praktyczny-poradnik-dla-pades-xades\/","title":{"rendered":"Countersignature or second signature? A practical guide for PAdES\/XAdES"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"7672\" class=\"elementor elementor-7672\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1efe208d e-con-full e-flex e-con e-parent\" data-id=\"1efe208d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e75772b elementor-widget elementor-widget-heading\" data-id=\"e75772b\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Countersignature in a qualified signature - what it is, when it is useful and how to do it in proCertum SmartSign (Certum Mini \/ SimplySign)\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16ad35f elementor-widget elementor-widget-text-editor\" data-id=\"16ad35f\" 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;\">Bottom line: <\/span><b>countersignature<\/b><span style=\"font-weight: 400;\"> is a signature made <\/span><b>on an already existing signature<\/b><span style=\"font-weight: 400;\">. This is not a simple \u201esecond signature to the document\u201d (co-signature), but a <\/span><b>acknowledgement of someone else's signature<\/b><span style=\"font-weight: 400;\"> - For example, when a supervisor, legal counsel or CFO formally approves the signature of an employee or board member. <\/span><\/p><p><span style=\"font-weight: 400;\">In corporate circulation, more often than not, a simple <\/span><b>co-signature<\/b><span style=\"font-weight: 400;\"> under the document, but where the procedure requires a \u201esignature on the signature,\u201d you use the <\/span><b>countersignatures<\/b><span style=\"font-weight: 400;\">.<\/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-44afccd elementor-widget elementor-widget-heading\" data-id=\"44afccd\" 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<h2 class=\"elementor-heading-title elementor-size-default\">When does countersignature make sense?\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c372d03 elementor-widget elementor-widget-text-editor\" data-id=\"c372d03\" 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<ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Acceptance of someone else's signature (compliance, audit):<\/b><span style=\"font-weight: 400;\"> You are confirming a specific signature action by a particular person.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Formal and legal control:<\/b><span style=\"font-weight: 400;\"> lawyer\/finance (CFO) countersign the director's signature on a key document.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Internal Policies:<\/b><span style=\"font-weight: 400;\"> when the instructions say \u201evalidate X's signature,\u201d not \u201esign the document together with X.\u201d.<\/span><p>\u00a0<\/p><\/li><\/ul><p><span style=\"font-weight: 400;\">If the Articles of Incorporation simply say joint representation (two signatures), the PDF (PAdES) usually applies <\/span><b>second independent signature<\/b><span style=\"font-weight: 400;\">. Countersignature is sometimes a natural choice when <\/span><b>XAdES\/CAdES<\/b><span style=\"font-weight: 400;\"> (<a href=\"https:\/\/podpisano.pl\/en\/jak-poradzic-sobie-z-duzym-plikiem-przy-podpisie-kwalifikowanym-praktyczny-przewodnik\/\">external signatures<\/a>) and specific confirmation procedures.<\/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-b2d71e3 elementor-widget elementor-widget-heading\" data-id=\"b2d71e3\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Certum Mini or SimplySign? Both work<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c97159 elementor-widget elementor-widget-text-editor\" data-id=\"6c97159\" 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<ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Certum Mini<\/b><span style=\"font-weight: 400;\"> (card + USB reader): allows you to sign <\/span><b>offline<\/b><span style=\"font-weight: 400;\"> (without Internet) - useful in environments with higher security regimes.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>SimplySign<\/b><span style=\"font-weight: 400;\"> (mobile\/cloud signature): convenience and speed, works <\/span><b>online<\/b><span style=\"font-weight: 400;\"> (along with SimplySign Desktop on the computer).<\/span><\/li><\/ul><p><b>proCertum SmartSign<\/b><a href=\"https:\/\/podpisano.pl\/en\/simplysign-i-procertum-smartsign-razem-czy-osobno-jak-dzialaja-i-do-czego-sluza\/\"><span style=\"font-weight: 400;\"> supports <\/span><b>both<\/b><\/a><span style=\"font-weight: 400;\"> solutions - you can countersign regardless of whether you use a card (Certum Mini) or a mobile signature (SimplySign).<\/span><a href=\"https:\/\/pomoc.certum.pl\/pl\/oprogramowanie\/procertum-smartsign\/?utm_source=chatgpt.com\"><span style=\"font-weight: 400;\">\u00a0<\/span><\/a><\/p><p><span style=\"font-weight: 400;\">\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 class=\"elementor-element elementor-element-eda4e20 elementor-widget elementor-widget-heading\" data-id=\"eda4e20\" 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<h2 class=\"elementor-heading-title elementor-size-default\">How to make a countersignature in proCertum SmartSign - step by step\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e38cca elementor-widget elementor-widget-text-editor\" data-id=\"6e38cca\" 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 diagram below is according to the official <\/span><a href=\"https:\/\/pomoc.certum.pl\/pl\/kontrasygnata-podpisu-elektronicznego\/\"><span style=\"font-weight: 400;\">instructions <\/span><\/a><span style=\"font-weight: 400;\">Certum.<\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><h5><b>Prepare your tools<\/b><\/h5><p>\u00a0<\/p><ul><li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Insert card <\/span><b>Certum Mini<\/b><span style=\"font-weight: 400;\"> or log on to <\/span><b>SimplySign Desktop<\/b><span style=\"font-weight: 400;\">. <\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"2\">Make sure you have <b>current proCertum SmartSign<\/b> (Check the version on the home screen; download the latest one from the site <a href=\"https:\/\/pomoc.certum.pl\/pl\/oprogramowanie\/\">Certum<\/a>).<\/li><\/ul><\/li><\/ol>\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-ab716c1 elementor-widget elementor-widget-image\" data-id=\"ab716c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"453\" src=\"https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153602-1024x580.png\" class=\"attachment-large size-large wp-image-7682\" alt=\"Countersignature or second signature? A practical guide for PAdES\/XAdES\" srcset=\"https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153602-1024x580.png 1024w, https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153602-300x170.png 300w, https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153602-768x435.png 768w, https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153602-900x510.png 900w, https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153602.png 1147w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\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-2b51cd8 elementor-widget elementor-widget-text-editor\" data-id=\"2b51cd8\" 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<h5 style=\"padding-left: 40px;\"><b>2. determine the type of previous signature<\/b><b><\/b><\/h5><ul><li style=\"list-style-type: none;\"><ul><li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">If the document has <\/span><a href=\"https:\/\/podpisano.pl\/en\/cades-xades-czy-pades-porownanie-podpisow-wewnetrznych-i-zewnetrznych\/\"><b>external signature<\/b><\/a><span style=\"font-weight: 400;\"> (separate signature file) - go straight to the signing stage.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">If the document has <\/span><a href=\"https:\/\/podpisano.pl\/en\/podpis-wewnetrzny-a-zewnetrzny-czym-sie-roznia-i-kiedy-je-stosowac\/\"><b>internal signature<\/b><\/a><span style=\"font-weight: 400;\"> (content and signature in one file), use the option <\/span><b>\u201eSave Content\u201d.\u201d<\/b><span style=\"font-weight: 400;\">, to extract the signed content - if the button is active.<\/span><\/li><\/ul><\/li><\/ul><p>\u00a0<\/p><h5 style=\"padding-left: 40px;\"><b>3. initiate countersignature<\/b><\/h5><ul><li style=\"list-style-type: none;\"><ul><li><span style=\"font-weight: 400;\">In SmartSign, go to <\/span><b>Signing<\/b><span style=\"font-weight: 400;\"> \u2192 <\/span><b>Add file<\/b><span style=\"font-weight: 400;\"> \u2192 <\/span><b>Sign<\/b><span style=\"font-weight: 400;\">.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Select your certificate (from a card or SimplySign).<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">The program detects that the document <\/span><b>was already signed<\/b><span style=\"font-weight: 400;\"> and prompts for an action - select <\/span><b>\u201eCounter-sign.\u201d<\/b><span style=\"font-weight: 400;\">.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Point to <\/span><b>specific signature<\/b><span style=\"font-weight: 400;\">, which you want to countersign, enter the PIN and confirm. After a while, you will see a success message.<\/span><a href=\"https:\/\/pomoc.certum.pl\/pl\/kontrasygnata-podpisu-elektronicznego\/\"><span style=\"font-weight: 400;\">\u00a0<\/span><\/a><\/li><\/ul><\/li><\/ul>\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-c8cbbf6 elementor-widget elementor-widget-image\" data-id=\"c8cbbf6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"651\" src=\"https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153228.png\" class=\"attachment-large size-large wp-image-7686\" alt=\"Countersignature or second signature? A practical guide for PAdES\/XAdES\" loading=\"lazy\" srcset=\"https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153228.png 905w, https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153228-300x244.png 300w, https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153228-768x625.png 768w, https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-09-30-153228-900x733.png 900w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\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-2931ae6 elementor-widget elementor-widget-text-editor\" data-id=\"2931ae6\" 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;\">Practical note: in PDF (PAdES) business you usually use <\/span><b>second signature<\/b><span style=\"font-weight: 400;\"> under the document (co-signature), because it is more legible in the signature panel. <\/span><\/p><p><b>Counter-signature<\/b><span style=\"font-weight: 400;\"> is more often used in XAdES\/CAdES (external signatures).<\/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-976c89d elementor-widget elementor-widget-image\" data-id=\"976c89d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"648\" src=\"https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-10-07-165507-e1759932696575.png\" class=\"attachment-large size-large wp-image-7690\" alt=\"Countersignature or second signature? A practical guide for PAdES\/XAdES\" loading=\"lazy\" srcset=\"https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-10-07-165507-e1759932696575.png 902w, https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-10-07-165507-e1759932696575-300x243.png 300w, https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-10-07-165507-e1759932696575-768x622.png 768w, https:\/\/podpisano.pl\/wp-content\/uploads\/2025\/10\/Zrzut-ekranu-2025-10-07-165507-e1759932696575-900x729.png 900w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\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-e7e36fa elementor-widget elementor-widget-heading\" data-id=\"e7e36fa\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Countersignature vs. timestamping and archiving - what to do to make a document \u201esurvive\u201d years\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f90627d elementor-widget elementor-widget-text-editor\" data-id=\"f90627d\" 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;\">Qualified signature by itself <\/span><b>does not guarantee perpetual verifiability<\/b><span style=\"font-weight: 400;\">. The certificate will expire (usually after 1-3 years), and verification sources are not maintained indefinitely. Therefore, for a long retention period, the key <\/span><b>qualified time stamp<\/b><span style=\"font-weight: 400;\">. <\/span><a href=\"https:\/\/podpisano.pl\/en\/archiwizacja-dokumentow-z-e-podpisem-poradnik-offline-dla-firm\/\"><span style=\"font-weight: 400;\">He is the one who confirms<\/span><\/a><span style=\"font-weight: 400;\">, that <\/span><b>specific document existed at the time and was not altered<\/b><span style=\"font-weight: 400;\"> - Even when the signer's certificate has already expired.<\/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-7843130 elementor-widget elementor-widget-heading\" data-id=\"7843130\" 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<h4 class=\"elementor-heading-title elementor-size-default\">How to put it together in practice (according to our \u201eoffline\u201d guide)\n\n\n\n<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c68d49e elementor-widget elementor-widget-text-editor\" data-id=\"c68d49e\" 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>Our guide <a href=\"https:\/\/podpisano.pl\/en\/archiwizacja-dokumentow-z-e-podpisem-poradnik-offline-dla-firm\/\">here<\/a><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Rule 1:<\/b> <b>Add a qualified timestamp to any valid document.<\/b><span style=\"font-weight: 400;\"> In SimplySign and Certum Mini, you can include it automatically when signing either <\/span><b>add later<\/b><span style=\"font-weight: 400;\"> (when you have access to the Internet). <\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Rule 2:<\/b><span style=\"font-weight: 400;\"> \u201eSimply tacking\u201d a tag onto a finished file does not exist - technically <\/span><b>you add another signature<\/b><span style=\"font-weight: 400;\"> containing a timestamp, or (for an external signature) <\/span><b>you replace<\/b><span style=\"font-weight: 400;\"> the existing signature with a version with a marker or <\/span><b>you add a countersignature with a marker<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/li><li><b>Rule 3:<\/b> <b>Archive locally (offline)<\/b><span style=\"font-weight: 400;\"> According to the procedure: format <\/span><b>PDF\/PAdES<\/b><span style=\"font-weight: 400;\"> as the default \u201eon the shelf,\u201d store external files (XAdES\/CAdES) <\/span><b>together with the signature file<\/b><span style=\"font-weight: 400;\">, maintain metadata (signature, date, type, hash) and backups.<\/span><\/li><\/ul>\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-6c8b820 elementor-widget elementor-widget-heading\" data-id=\"6c8b820\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Best practices from the podpisano.pl experience\n\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0881e16 elementor-widget elementor-widget-text-editor\" data-id=\"0881e16\" 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<ol><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Verify before countersignature.<\/b><span style=\"font-weight: 400;\"> In SmartSign, you have the ability to verify signatures \u201ein plain sight\u201d - before you add another layer, check that the previous one is correct.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Always turn on the time stamp<\/b><span style=\"font-weight: 400;\"> With documents that are supposed to live longer than the certificate. This is the easiest way to\u00a0<a href=\"https:\/\/podpisano.pl\/en\/uslugi-zaufania-cyfrowego-i-konserwacja-podpisu-kwalifikowanego\/\" target=\"_blank\" rel=\"noopener\">LTV<\/a>\u00a0(long-term validation).<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Offline\/online without conflicts.<\/b><span style=\"font-weight: 400;\"> Certum Mini: you can sign <\/span><a href=\"https:\/\/podpisano.pl\/en\/archiwizacja-dokumentow-z-e-podpisem-poradnik-offline-dla-firm\/\"><b>offline<\/b><\/a><span style=\"font-weight: 400;\">, and add the marker later as <\/span><b>another signature<\/b><span style=\"font-weight: 400;\"> or <\/span><b>countersignature<\/b><span style=\"font-weight: 400;\"> (for external signature). SimplySign: works online - you attach the tag \u201eon the spot\u201d.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Readability for the recipient.<\/b><span style=\"font-weight: 400;\"> In PDFs, usually choose <\/span><b>second signature<\/b><span style=\"font-weight: 400;\"> (co-signature) - the recipient sees \u201etwo signers\u201d. A countersignature makes sense when you want to clearly show the <\/span><b>approval of someone else's signature<\/b><span style=\"font-weight: 400;\"> (e.g., formal compliance). <\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Settings in SmartSign under control.<\/b> W <b>Settings \u2192 Signature<\/b> you can indicate the type (<a href=\"https:\/\/podpisano.pl\/en\/podpis-wewnetrzny-a-zewnetrzny-czym-sie-roznia-i-kiedy-je-stosowac\/\">internal\/external<\/a>.), set PAdES for PDF and display the reason for the signature - it's worth configuring this once, according to company policy.<\/li><\/ol>\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-d8b53c0 elementor-widget elementor-widget-heading\" data-id=\"d8b53c0\" 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<h2 class=\"elementor-heading-title elementor-size-default\">FAQ<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-772b5d9 elementor-widget elementor-widget-text-editor\" data-id=\"772b5d9\" 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><b>Does the countersignature require another certificate?<\/b><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">No. You use <\/span><b>of the same qualified certificate<\/b><span style=\"font-weight: 400;\"> - on <\/span><b>Certum Mini<\/b><span style=\"font-weight: 400;\"> either in <\/span><b>SimplySign<\/b><span style=\"font-weight: 400;\">. SmartSign itself will recognize the previous signature and propose an action <\/span><b>\u201eCounter-sign.\u201d<\/b><span style=\"font-weight: 400;\">.<\/span><\/p><p><b>Is it necessary to do a countersignature in PDF (PAdES)?<\/b><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">In business practice - rarely. Most often you add <\/span><b>second signature<\/b><span style=\"font-weight: 400;\"> Under the document (co-signature). <\/span><b>Counter-signature<\/b><span style=\"font-weight: 400;\"> is more common in <\/span><b>XAdES\/CAdES<\/b><span style=\"font-weight: 400;\"> (external signature) and where the policy requires proof of <\/span><b>specific signature<\/b><span style=\"font-weight: 400;\">.<\/span><a href=\"https:\/\/www.support.certum.eu\/en\/cert-offer-procertum-smartsign-support\/?utm_source=chatgpt.com\"><span style=\"font-weight: 400;\">\u00a0<\/span><\/a><\/p><p><b>How to add a time stamp after signing?<\/b><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">For the signature <\/span><b>internal (e.g., PAdES)<\/b><span style=\"font-weight: 400;\"> \u2013 <\/span><b>add another signature<\/b><span style=\"font-weight: 400;\"> With a timestamp.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><span style=\"font-weight: 400;\"> For <\/span><b>external (XAdES\/CAdES)<\/b><span style=\"font-weight: 400;\"> - you can <\/span><b>replace<\/b><span style=\"font-weight: 400;\"> signature version with a marker, add <\/span><b>another signature<\/b><span style=\"font-weight: 400;\"> with a marker or <\/span><b>countersigned by<\/b><span style=\"font-weight: 400;\"> containing the tag.<\/span><a href=\"https:\/\/podpisano.pl\/en\/archiwizacja-dokumentow-z-e-podpisem-poradnik-offline-dla-firm\/\"> <span style=\"font-weight: 400;\">Podpisano.pl<\/span><\/a><\/p><p><b>Is it possible to sign and archive \u201efully offline\u201d?<\/b><\/p><p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Yes - alone <\/span><b>signature<\/b><span style=\"font-weight: 400;\"> you can submit <\/span><b>offline<\/b><span style=\"font-weight: 400;\"> (Certum Mini + SmartSign). <\/span><b>Timestamp<\/b><span style=\"font-weight: 400;\"> requires an Internet connection - you can add it later, as another operation.<\/span><a 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136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><span class=\"elementor-screen-only\">Next<\/span><\/span><\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e3b2a02 elementor-widget elementor-widget-heading\" data-id=\"e3b2a02\" 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\">Qualified signatures SimplySign and Certum Mini<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8bba10a elementor-widget elementor-widget-text-editor\" data-id=\"8bba10a\" 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<div class=\"vc_row wpb_row vc_row-fluid vc_custom_1685206387589\"><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column wpb_content_element\"><div class=\"wpb_wrapper\"><p>If you have any concerns or questions, please contact us<\/p><p><strong><a href=\"tel:+48224170555\">+48 22 417 05 55<\/a><\/strong><\/p><p>We'll answer your questions, find a time that works for you, and match you with an advisor at one of our locations throughout Poland.<\/p><p>You can also write an email from us\u00a0<strong><a href=\"mailto:kontakt@podpisano.pl\">contact@podpisano.pl.<\/a><\/strong>\u00a0<\/p><\/div><\/div><\/div><\/div><\/div><\/div>\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-13d30fb e-con-full e-flex e-con e-child\" data-id=\"13d30fb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8d92a82 elementor-widget elementor-widget-theme-site-logo elementor-widget-image\" data-id=\"8d92a82\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"theme-site-logo.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/podpisano.pl\/en\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"394\" src=\"https:\/\/podpisano.pl\/wp-content\/uploads\/2024\/06\/podpisano.pl-autoryzowany-partenr-Certum.png\" class=\"attachment-full size-full wp-image-5452\" alt=\"podpisano.pl - authorized partner of Certum\" srcset=\"https:\/\/podpisano.pl\/wp-content\/uploads\/2024\/06\/podpisano.pl-autoryzowany-partenr-Certum.png 500w, https:\/\/podpisano.pl\/wp-content\/uploads\/2024\/06\/podpisano.pl-autoryzowany-partenr-Certum-300x236.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/>\t\t\t\t<\/a>\n\t\t\t\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-590583b e-flex e-con-boxed e-con e-parent\" data-id=\"590583b\" 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-21b321b elementor-widget elementor-widget-text-editor\" data-id=\"21b321b\" 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>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>With PDF (PAdES), you'll usually add a second signature, but with XAdES\/CAdES sometimes a counter-signature is better. See how to choose the right variant, how to set up proCertum SmartSign (Certum Mini \/ SimplySign) and how to add a timestamp to preserve LTV.<\/p>","protected":false},"author":322,"featured_media":7673,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[139],"tags":[314,336,296,290,291],"class_list":["post-7672","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-podpisy-kwalifikowane","tag-dokumenty-elektroniczne","tag-e-sprawozdanie","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>Kontrasygnata czy drugi podpis? Praktyczny poradnik dla PAdES\/XAdES - Podpisano.pl<\/title>\n<meta name=\"description\" content=\"Kiedy wystarczy wsp\u00f3\u0142podpis, a kiedy kontrasygnata? Przyk\u0142ady z PAdES\/XAdES\/CAdES, konfiguracja w SmartSign i rola kwalifikowanego znacznika czasu.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/podpisano.pl\/en\/kontrasygnata-czy-drugi-podpis-praktyczny-poradnik-dla-pades-xades\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kontrasygnata czy drugi podpis? Praktyczny poradnik dla PAdES\/XAdES\" \/>\n<meta property=\"og:description\" content=\"Kontrasygnata to nie \u201edrugi podpis\u201d, tylko podpis NA podpisie. 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