User guide

Table Of Contents

Enfocus Instant PDF User Guide 65

Source file references

To assist in this process, a Certified PDF document

can also keep a reference to the source file(s) from

which the PDF document was created. You can use

this reference to make sure that the source file has

not been edited since the PDF document was cre-

ated.

See also:

• “Guaranteed Preflighting” on page 62

• “Responsibility” on page 65

• “Viewing the Edit Log File” on page 71

Responsibility

Responsibility Issues

In addition to causing inconsistencies, changing a

PDF document that was created by someone else

can create ambiguity about who is ultimately

responsible for the final result.

Many printers, service providers, etc. are extremely

reluctant to make any changes to their customer’s

documents for fear of having to assume responsi-

bility if anything goes wrong. This includes issues

that can be totally unrelated to the small correction

applied.

Responsibility in a Certified PDF workflow

The Certified PDF workflow settles responsibility

issues by:

•Providing a detailed log file of all the changes

made to a PDF document

• Keeping track of the PDF editing process, i.e.

who applied which change and when

• Implementing a robust roll-back mechanism

which, if you wish, allows you to easily return

to a previously saved state —a “snapshot”— of

your PDF document

• Offering the possibility to compare any two of

these snapshots visually to detect and

examine the differences.