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* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
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<meta>
<topic id="pdfdigitalsignature" indexer="include" status="PUBLISH">
<title id="tit" xml-lang="en-US">PDF Export Digital Signature</title>
<filename>/text/shared/01/ref_pdf_export_digital_signature.xhp</filename>
</topic>
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<body>
<bookmark xml-lang="en-US" branch="index" id="bm_id761574111929927">
<bookmark_value>PDF export;digital signature</bookmark_value>
<bookmark_value>PDF export;sign PDF document</bookmark_value>
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<section id="pdfexportdigitalsignature">
<bookmark xml-lang="en-US" branch="hid/filter/ui/pdfsignpage/pdfsignpage" id="bm_id18720359" localize="false"/>
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<h1 id="hd_id13068636"><variable id="pdfexportdigitalsignatureh1"><link href="text/shared/01/ref_pdf_export_digital_signature.xhp" name="Digital Signatures">Digital Signatures</link></variable></h1>
<paragraph id="par_id22107303" role="paragraph" xml-lang="en-US">This tab contains the options related to exporting to a digitally signed PDF.</paragraph>
</section>
<section id="howtoget">
<embed href="text/shared/00/00000401.xhp#exportsignedpdf"/>
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<paragraph id="par_id22107304" role="paragraph" xml-lang="en-US">Digital signatures are used to ensure that the PDF was really created by the original author (i.e. you), and that the document has not been modified since it was signed.</paragraph>
<paragraph id="par_id22107305" role="paragraph" xml-lang="en-US">The signed PDF export uses the keys and X.509 certificates already stored in your default key store location or on a smartcard.</paragraph>
<switch select="sys">
<case select="WIN"></case>
<default>
<paragraph id="par_id22107306" role="paragraph" xml-lang="en-US">The key store to be used can be selected under <switchinline select="sys"><caseinline select="MAC"><emph>%PRODUCTNAME - Preferences</emph></caseinline>
<defaultinline><emph>Tools - Options</emph></defaultinline></switchinline><emph> - %PRODUCTNAME - Security - Certificate Path</emph>.</paragraph>
</default>
</switch>
<paragraph id="par_id22107307" role="paragraph" xml-lang="en-US">When using a smartcard, it must already be configured for use by your key store. This is usually done during installation of the smartcard software.</paragraph>
<bookmark xml-lang="en-US" branch="hid/filter/ui/pdfsignpage/cert" id="bm_id18720358" localize="false"/>
<h2 id="hd_id191574111792669">Certificate</h2>
<h3 id="hd_id12927335">Use this certificate to digitally sign PDF documents</h3>
<paragraph id="par_id12107303" role="paragraph" xml-lang="en-US"><ahelp hid=".">Allows you to select a certificate to be used for signing this PDF export.</ahelp></paragraph>
<bookmark xml-lang="en-US" branch="hid/filter/ui/pdfsignpage/select" id="bm_id11476485" localize="false"/>
<h3 id="hd_id17985168">Select</h3>
<paragraph id="par_id12507303" role="paragraph" xml-lang="en-US"><ahelp hid=".">Opens the <emph>Select Certificate</emph> dialog.</ahelp></paragraph>
<paragraph id="par_id12507403" role="paragraph" xml-lang="en-US">All certificates found in your selected key store are displayed. If the key store is protected by a password, you are prompted for it. When using a smartcard that is protected by a PIN, you are also prompted for that.</paragraph>
<paragraph id="par_id12507503" role="paragraph" xml-lang="en-US">Select the certificate to use for digitally signing the exported PDF by clicking on the corresponding line, then click <emph>OK</emph>.</paragraph>
<paragraph id="par_id12507603" role="paragraph" xml-lang="en-US">All other fields on the <emph>Digital Signatures</emph> tab will be accessible only after a certificate has been selected.</paragraph>
<bookmark xml-lang="en-US" branch="hid/filter/ui/pdfsignpage/password" id="bm_id21476485" localize="false"/>
<h3 id="hd_id1876186">Certificate password</h3>
<paragraph id="par_id13939634" role="paragraph" xml-lang="en-US"><ahelp hid=".">Enter the password used for protecting the private key associated with the selected certificate.</ahelp> Usually this is the key store password.</paragraph>
<note id="par_id13932634">If the key store password has already been entered in the <emph>Select Certificate</emph> dialog, the key store may already be unlocked and not require the password again. But to be on the safe side, enter it nevertheless.</note>
<warning id="par_id13933634">When using a smartcard, enter the PIN here. Some smartcard software will prompt you for the PIN again before signing. This is cumbersome, but that's how smartcards work.</warning>
<bookmark xml-lang="en-US" branch="hid/filter/ui/pdfsignpage/location" id="bm_id12693472" localize="false"/>
<bookmark xml-lang="en-US" branch="hid/filter/ui/pdfsignpage/contact" id="bm_id13693472" localize="false"/>
<bookmark xml-lang="en-US" branch="hid/filter/ui/pdfsignpage/reason" id="bm_id14693472" localize="false"/>
<h3 id="hd_id1599688">Location, Contact information, Reason</h3>
<paragraph id="par_id11371501" role="paragraph" xml-lang="en-US"><ahelp hid=".">These three fields allow you to optionally enter additional information about the digital signature that will be applied to the PDF (Where, by whom and why it was made). It will be embedded in the appropriate PDF fields and will be visible to anyone viewing the PDF. Each or all of the three fields may be left blank.</ahelp></paragraph>
<bookmark xml-lang="en-US" branch="hid/filter/ui/pdfsignpage/tsa" id="bm_id18849147" localize="false"/>
<h3 id="hd_id14661702">Time Stamp Authority</h3>
<paragraph id="par_id17868892" role="paragraph" xml-lang="en-US"><ahelp hid=".">Allows you to optionally select a Time Stamping Authority (TSA) URL. </ahelp></paragraph>
<paragraph id="par_id29089022" role="paragraph" xml-lang="en-US">During the PDF signing process, the TSA will be used to obtain a digitally signed timestamp that is then embedded in the signature. This (RFC 3161) timestamp will allow anyone viewing the PDF to verify when the document was signed.</paragraph>
<paragraph id="par_id39089022" role="paragraph" xml-lang="en-US">The list of TSA URLs that can be selected is maintained under <switchinline select="sys"><caseinline select="MAC"><emph>%PRODUCTNAME - Preferences</emph>
</caseinline><defaultinline><emph>Tools - Options</emph></defaultinline></switchinline><emph> - %PRODUCTNAME - Security - TSAs</emph>.</paragraph>
<paragraph id="par_id49089022" role="paragraph" xml-lang="en-US">If no TSA URL is selected (the default), the signature will not be timestamped, but will use the current time from your local computer.</paragraph>
<section id="relatedtopics">
<paragraph role="paragraph" id="par_id421574099757770" localize="false"><embedvar href="text/shared/01/ref_pdf_export_general.xhp#pdfexportgeneralh1"/></paragraph>
<paragraph role="paragraph" id="par_id821574099764178" localize="false"><embedvar href="text/shared/01/ref_pdf_export_initial_view.xhp#pdfexportinitialviewh1"/></paragraph>
<paragraph role="paragraph" id="par_id671574099773507" localize="false"><embedvar href="text/shared/01/ref_pdf_export_user_interface.xhp#pdfexportuserinterfaceh1"/></paragraph>
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