Adobe Acrobat XI - Manual (Page 575)

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Preflight (Acrobat Pro)
Last updated 1/14/2015
Pages Includes page numbers and page sizes that represent the various document boxes supported by Adobe PDF 1.3
and later technology (media box, bleed box, trim box, and art box). This group also includes plate names for PDF pages
that belong to a preseparated PDF.
Document Includes all the pieces of information that apply to the PDF as a whole, such as whether the document is
encrypted, contains form fields, or contains bookmarks.
Document Info Lists all the standard entries that can also be accessed by the Document Info dialog box in Acrobat, and
information that has been standardized by the ISO 15930 standard (PDF/X).
Document Metadata Includes information embedded within the document, such as its title, author, copyright, and
keywords applied to it. This information is also available in the Document Metadata section of the Document
Properties dialog box in Acrobat. (Choose File > Properties, click the Description tab, and then click Additional
Metadata.)
Signatures Includes information about the signatures in the document.
Structured PDF Includes several basic properties for the tagging structure in a tagged PDF, for which the PDF/A
standard defines constraints.
Output Intents For PDF/X, PDF/A, or PDF/E Defines which output process the PDF has been prepared for. A PDF
intended for high-resolution printed output typically contains an output intent with an embedded ICC profile, for use
by a proofing device or a device’s RIP (raster image processor).
Output Intent For PDF/X, PDF/A, or PDF/E (ICC Profile Properties) Includes properties for accessing information from
an ICC profile embedded in the output intent. This group includes the same properties as ICC profiles for objects, such
as profile name and type. The ICC profile describes the output condition of the device where the document will be
imaged.
Efficiency Of PDF Content Stream Helps determine how efficiently page descriptions are encoded. For example, it is
possible to include the text Hello as a text operator for the whole word, or as several text operators for each character
in the word. The latter is less efficient and reduces the speed of page rendering. The efficiency checks return percentages
for several types of operators. A smaller value in most cases is better than a higher value.
Errors In PDF Syntax Returns information about specific errors in the syntax of a PDF. For example, if certain keys
required by the PDF specification are not included, Acrobat may still be able to render the file. For predictable PDF
rendering, however, it is preferable to encode all PDFs in strict compliance with the PDF specification.
Errors In Structured PDF Returns information about errors in the tag structure of a tagged PDF. For example, an error
is returned if the type of a tagged object is not properly specified. The properties in this group help identify errors in
tag structure.
Errors In PDF Content Stream Returns information about errors in the page descriptions in a PDF. For example, three
number operands are required to define RGB color. If there are fewer than three operators, it is not possible to render
the page. Properties in this group help determine the reasons why a PDF page isn’t rendered.
Preflight Edit Profile dialog box overview (Custom Checks)
The Profiles list in the Preflight Edit Profile dialog box contains predefined profiles included with Acrobat, and any
custom profiles you’ve created. If you select Custom Checks, you get more options for selecting and modifying items.
The buttons at the bottom of the column perform basic editing functions, such as duplicating, removing, and creating.
The search box helps you locate a specific check.