Преглед на кода на Instructions for signing documents with qualified electronic signature in Okular

== Before proceeding you must do==

* '''IMPORTANT:''' More information about [https://okular.kde.org/ Okular]

* '''IMPORTANT:''' Make sure you have installed the necessary drivers for your smart card and reader from [http://wiki.infonotary.com/index.php?title=Use_repositories_of_InfoNotary HERE]

* '''IMPORTANT:''' '''The following instruction is tested on Ubuntu 22.04 and Okular 21.12.3'''

== Installation of Okular ==

Install the program thru Terminal with command: <br/>

{{Шаблон:ConsoleOutput|sudo apt-get install okular}}

== Adding your smart card library in NSS ==

Configure your NSS repository:

* Install the NSS tools. In Debian based distribution the necessary package is '''libnss3-tools''':

{{Шаблон:ConsoleOutput|sudo apt-get install libnss3-tools}}

* Create a directory for the database of NSS with the following command:

{{Шаблон:ConsoleOutput|mkdir -p $HOME/.pki/nssdb}}

* Add the library of your smart card using this command:

For '''IDPrime''':

{{Шаблон:ConsoleOutput|modutil -add "IDPrime" -libfile libIDPrimePKCS11.so -dbdir sql:$HOME/.pki/nssdb -mechanisms FRIENDLY}}

For '''Bit4ID''':

{{Шаблон:ConsoleOutput|modutil -add "Bit4id" -libfile libbit4ipki.so -dbdir sql:$HOME/.pki/nssdb -mechanisms FRIENDLY}}

For '''OpenSC''':

{{Шаблон:ConsoleOutput|modutil -add "OpenSC" -libfile onepin-opensc-pkcs11.so -dbdir sql:$HOME/.pki/nssdb -mechanisms FRIENDLY}}

== Signing PDF documents in Okular ==

1. Choose the PDF file with '''File''' > '''Open'''

2. From '''Tools''' choose '''Digitally Sign'''

[[Файл:OkularInstruction1.png | 750 px]]

3. Using your mouse, click drag and draw the area where you would like the signature to appear.

[[Файл:OkularInstruction2.png | 750 px]]

4. Choose your signature and dial your '''PIN code'''.