Digital signature for PDF documents
To digitally sign PDF documents ...
- ... A valid personal certificate must be available.
- The certificate must be applied for and downloaded. You can find instructions on how to do this here.
- The certificate must be imported into the certificate store of the operating system.
Import certificate
Finalise import
- Enter the password for your certificate (certificate password that you also use when sending an encrypted mail).
- Deactivate all ticks except the last one.
- Confirm by clicking on "Next". (Fig. 3)
- In the following dialogue, activate "Automatically select certificate store".
- Confirm with "Next". (Fig. 4)
- Complete the import by clicking on "Finish". (Fig. 5)
- You will receive the message "The import process was successful". (Fig. 6)
![[Translate to English:] Zertifikatimport unter macOS – Bild 1](/storages/hs-wismar/HSW_zentral/Einrichtungen/ITSMZ/IT-INFO/Nutzerzertifikat/Import/Mac/zertImport_macOS_bild_01.png)
![[Translate to English:] Zertifikatimport unter macOS – Bild 2](/storages/hs-wismar/_processed_/c/a/csm_zertImport_macOS_bild_02_0ae3b38a9b.png)
![[Translate to English:] Zertifikatimport unter macOS – Bild 3](/storages/hs-wismar/_processed_/1/6/csm_zertImport_macOS_bild_03_2d7eaadcce.png)
![[Translate to English:] Zertifikatimport unter macOS – Bild 4](/storages/hs-wismar/_processed_/a/3/csm_zertImport_macOS_bild_04_471ee67f4b.png)
In the "Keychain Management" app (Fig. 1) on the Mac, select either the "Login" or "System" keychain (Fig. 2).
Drag and drop the certificate file onto the "Keychain Management" app (Fig. 3).
Enter the name and password of an admin on this computer when prompted (Fig. 4).
Note: Use a current version of Acrobat Reader. If necessary, install Adobe Acrobat via the Matrix42 Software Depot.
- Open the document to be signed in a PDF editor (e.g., Adobe Reader). Simply opening a PDF document in a browser-based viewer is not sufficient.
- Click on a signature field.
- If multiple certificates are available, select the correct one (GEANT... with the latest expiration date).
Then click Next. - In the “Sign as...” window, click the Create button.

7. The new signature will then be displayed. Confirm the change by clicking Save.


8. Finally, the new signature must be verified once more before it can be used to sign documents. To do this, click the Verify button, review the appearance integrity report, and then close it.

9. The document is now ready to be signed.
- Once all required signatures are on the document, the document can be locked after the signature is entered, if that option is enabled.
- The signed document must then be saved.
Note: Create a copy of your signature
Digitize your signature in PDF format:
- Write your signature in a drawing program using a mouse, a digital pen, or your finger on a touchscreen.
- Trim the margins.
- Print the drawing as a PDF.
- Take a photo of a handwritten signature on white paper with your smartphone.
- Crop the margins.
- Email the cropped photo to yourself.
- Open it on your local computer and print it as a PDF.
![[Translate to English:] Zertifikatimport unter Windows – Bild 1](/storages/hs-wismar/HSW_zentral/Einrichtungen/ITSMZ/IT-INFO/Nutzerzertifikat/Import/Windows/bild_06.png)
![[Translate to English:] Zertifikatimport unter Windows – Bild 2](/storages/hs-wismar/HSW_zentral/Einrichtungen/ITSMZ/IT-INFO/Nutzerzertifikat/Import/Windows/bild_07.png)
![[Translate to English:] Zertifikatimport unter Windows – Bild 3](/storages/hs-wismar/HSW_zentral/Einrichtungen/ITSMZ/IT-INFO/Nutzerzertifikat/Import/Windows/bild_08.png)
![[Translate to English:] Zertifikatimport unter Windows – Bild 4](/storages/hs-wismar/HSW_zentral/Einrichtungen/ITSMZ/IT-INFO/Nutzerzertifikat/Import/Windows/bild_09.png)
![[Translate to English:] Zertifikatimport unter Windows – Bild 5](/storages/hs-wismar/HSW_zentral/Einrichtungen/ITSMZ/IT-INFO/Nutzerzertifikat/Import/Windows/bild_10.png)
![[Translate to English:] Zertifikatimport unter Windows – Bild 6](/storages/hs-wismar/HSW_zentral/Einrichtungen/ITSMZ/IT-INFO/Nutzerzertifikat/Import/Windows/bild_11.png)
![[Translate to English:] PDF digital unterschreiben – Bild 1](/storages/hs-wismar/HSW_zentral/Einrichtungen/ITSMZ/IT-INFO/Nutzerzertifikat/Import/Windows/bild_12.png)



