Enfocus Instant PDF 08, 25u, Electronic User's Guide download pdf (Page 46)

Chapter 3: Preflighting PDF documents46

Preflighting

Preflighting Defined

Preflighting is a term derived from the airline

industry. The pilot has the responsibility to deter-

mine the airworthiness of the aircraft before

take-off. This means that he or she has to perform

a number of checks prior to each flight.

Preflighting PDF documents basically means the

same thing: the “pilot in command”, i.e. the per-

son who creates or processes a PDF document, has

to make sure that the document is “airworthy”, or

rather, “outputworthy”, before delivering it.

“Outputworthy” means that the PDF document is

“fit for use”, for example:

• That a PDF document to be printed on a

four-color offset press contains only CMYK

colors and that all the necessary fonts are

included

• That a PDF document intended for online

viewing contains only RGB colors

Moreover, any property of a PDF document which

does not meet the requirements of the Preflight

Profile can be reported as a “problem” and some of

them can be fixed in the same process.

Preflighting Mechanism

How exactly does preflighting work in an Enfocus

PDF Queue? The preflight stage in the Certified PDF

workflow typically goes like this:

1 The PDF document is submitted to a preflight

check against a Preflight Profile.

2 A number of problems may be detected and

some of those may be fixed automatically.

3 The detected and fixed problems are listed in

a preflight report.

The next step in the workflow is the review stage.

This is where you may take a look at the preflight

report and visually inspect the PDF document.

See also:

• “Preflight Profiles” on page 46

• Creating and Editing PDF Queues

> “Preflight” on page 108

> “Review” on page 109

Preflight Profiles

Preflight Profile: Key Component of a PDF Queue

A Preflight Profile is a key component of a PDF

Queue: the PDF Queue needs a Preflight Profile to

preflight PDF documents. A Preflight Profile is a col-

lection of criteria which a PDF document should

meet to be outputworthy. Each criterion corre-

sponds to a given property of the PDF document.

An example of such a property is RGB colors. The

fact whether a PDF document can contain objects in

RGB colors or not can be one of the criteria of the

Preflight Profile.

For each criterion in the Preflight Profile, it can be

specified:

• Whether it should be checked or not

• How a deviating property in the PDF docu-

ment should be listed in the preflight report:

as Information or as Error

Moreover, some criteria also offer the option to fix

deviating properties. For example, the Preflight

Profile can automatically convert all RGB colors in

the PDF document to CMYK.

Using Preflight Profiles

Using Preflight Profiles in Instant PDF simply means

that you find an existing Preflight Profile and assign

it to a PDF Queue. A PDF Queue always needs a Pre-

flight Profile. Without a Preflight Profile, a PDF

Queue can never be valid.

You cannot create or edit Preflight Profiles in

Instant PDF. To do this, you need Enfocus PitStop

Pro or Enfocus PitStop Server. Alternatively, you can

download Preflight Profiles from our Web site.

See also:

• Creating and Editing PDF Queues >“Preflight”

on page 108

• www.enfocus.com for information about

Enfocus PitStop Pro or Enfocus PitStop Server

• www.enfocus.com/support/pdfprofile-

slist.php to download Preflight Profiles from

our Web site

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