How to Sign Documents with AATL Certificates (Adobe)
- Open the PDF you wish to sign in Adobe Reader
- Click the Tools button towards the top left, then click Certificates:
- Next, click the Digitally Sign button:
- Click OK to drag a signature rectangle:
- Drag a signature rectangle where you would like your signature to appear:
- When you release the signature rectangle, a window will appear with signing options. Choose your signing certificate from the drop-down menu. You may optionally customize the appearance of your signature. Click Sign:
- You will be prompted to re-save your document. You may either replace the existing file or save it under a new name. Click Save:
- If this is your first time signing, you may be prompted to allow Reader to access a timestamp. If you get this prompt, click Allow. The 3rd party timestamp enables non-repudiation of your signature, it acts much like a digital notary:
- Next, enter the password for your AATL or CDS certificate:
- Once the signature is placed you will see your signature on the document and the “Blue Bar” will be activated showing that your signature is valid:
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