System information

a given session and can store the information about these changes per session (“incrementally”)
as you save your PDF document.
This way of managing and saving changes has a big advantage: You know exactly which changes
have been made in which session and by whom. Moreover, these changes can be presented to you
in the form of a “snapshot”: a view of the status of the PDF document at the time it was saved at
the end of a session.
And you can do even more: You cannot only view the state of the PDF document in a given previous
editing session, you can also save this snapshot as a separate PDF document. This is called the
roll-back mechanism. When editing PDF documents, you may have experienced
“one-change-too-far” situations, in which you made a change, got an undesired result but also
saved the PDF document. No problem in a Certified PDF workflow: you can revert to any previously
saved state of a PDF document, provided that you save your Certified PDF document using File >
Enfocus Sign and Save (or CTRL+Shift+s).
Note: You cannot save snapshots or use the roll-back mechanism in “optimized” Certified PDF
documents. See Saving an optimized Certified PDF document on page 107.
Viewing a snapshot
You can view snapshots of a Certified PDF document in the following ways:
• By Saving a snapshot on page 104 with a different name and opening it as a regular PDF document
• By Comparing sessions on page 105
Saving a snapshot
A snapshot is a visual representation of the state of a PDF document at the time it was saved after
an editing session. You save a snapshot to revert to a previous version of your PDF document.
However, you do not necessarily have to save this snapshot at the end of each session. You can
simply select any session from a list and save its snapshot at any stage in your workflow.
Consider the following example. You have created a Certified PDF document in which you use only
black text and one spot color. The document has been designed to be printed on an offset press.
At some point in the workflow, however, you also want to print this PDF document on a digital
four-color press and therefore, you change the spot color into its CMYK counterpart throughout
your entire PDF document. You may use Enfocus PitStop Pro, for example, to do this. This means
that the latest version of your PDF document contains only CMYK colors. But, you also need to
reprint this PDF document on an offset press using the spot color. You can then simply select a
version which still has the spot colors, save its snapshot as a separate PDF document and send
this PDF file to your offset printer.
To save a snapshot
1. Open a Certified PDF document.
2. Choose Certified PDF > Show History .
3. Select a session in the list of which you want to save a snapshot.
4. Click Save Snapshot to save a snapshot of your PDF document as it was at the end of the
selected session.
5. Enter a descriptive name for your snapshot and click Save.
6. If necessary, repeat steps 2 through 4 to save any additional snapshots.
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Enfocus PitStop Pro