Calendario 2013 - Farne Islands
Northumberland (North East England

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Adding Digital Signatures to Existing PDF's

The Digital Signature Viewing Screen has 3 sections:

The upper section where:

  1. you can select between the "Hand" cursor and the "Cross hair" cursor.

    the "Hand" cursor gets used when you want to move the page around in order to choose the location for the digital signature place holder. You can also use the scrollbars to do this.
    the "Cross hair" cursor gets used to draw the digital signature place holder.
  2. you will select the specific page on which you want the Digital Signature to be applied, you can:
    1. go to the first page
    2. go to the previous page
    3. insert a specific page
    4. move to the next page
    5. go to the last page
  3. you can make the document larger using the zoom factor

The Original Pane:

This side of the screen shows what the PDF looks like.

 

The Signing Pane:

The Signing Pane shows a duplicate of the existing PDF and this is the side where you place your Digital Id based signature.

You can place your Digital Signature on any page of an existing PDF file (even on top of a previous signature that will be replaced):

  1. position the cursor where you will want the image to start from
  2. press the left mouse button
  3. drag your mouse and a shaded place holder will appear on the signing pane.


Once you have selected the page and position you want the Digital Signature to be placed, press to complete processing of your Digitally signed PDF file.

 

The following is an example of a PDF file signed using a Digital Signature.

If you decide NOT to create a Signed PDF file press .

You will be presented with 3 possible choices:

1 Save this PDF file with an Invisible Digital Signature. The document will be verifiable based on its Digital Signature. There will simply be no graphical reference on the PDF page or pages but the Digital Signature will be present and the Security flag ("Show Signatures") will be visible when viewing the PDF document.
2 Save this PDF file with no Digital Signature at all. The resulting file will be a normal unsigned PDF file.
3 Abort saving this PDF (stop processing a new PDF file now). This will not produce any output at all.

Informazioni aggiuntive

Firme Digitali

Creare un nuovo PDF firmato Digitalmente

Aggiungere una firma digitale ad un PDF esistente

Cos'è un Certificato Digitale?

Definizione di Root Certificate

X.509 Certificates

Dove prendere un Certificato Digitale

Richiedere un Certificato Digitale utilizzando Internet Explorer

Come esportare un file PFX da Internet Explorer

Richiedere un Certificato Digitale utilizzando Firefox

Come importare un file PFX File di Internet Exploere su Firefox

Come esportare un file PFX da Firefox

Adobe Acrobat ed i files PDF firmati digitalmente

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