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            CHAPTER 8                                                        Interactive Features



ANNOTATION TYPE DESCRIPTION                          MARKUP? DISCUSSED IN SECTION

Highlight          (PDF 1.3) Highlight annotation    Yes       “Text Markup Annotations” on page 633

Underline          (PDF 1.3) Underline annotation    Yes       “Text Markup Annotations” on page 633

Squiggly           (PDF 1.4) Squiggly-underline      Yes       “Text Markup Annotations” on page 633
                   annotation

StrikeOut          (PDF 1.3) Strikeout annotation    Yes       “Text Markup Annotations” on page 633

Stamp              (PDF 1.3) Rubber stamp annotation Yes       “Rubber Stamp Annotations” on page 635

Caret              (PDF 1.5) Caret annotation        Yes       “Caret Annotations” on page 634

Ink                (PDF 1.3) Ink annotation          Yes       “Ink Annotations” on page 636

Popup              (PDF 1.3) Pop-up annotation       No        “Pop-up Annotations” on page 637

FileAttachment     (PDF 1.3) File attachment         Yes       “File Attachment Annotations” on page 637
                   annotation

Sound              (PDF 1.2) Sound annotation        Yes       “Sound Annotations” on page 638

Movie              (PDF 1.2) Movie annotation        No        “Movie Annotations” on page 639

Widget             (PDF 1.2) Widget annotation       No        “Widget Annotations” on page 640

Screen             (PDF 1.5) Screen annotation       No        “Screen Annotations” on page 639

PrinterMark        (PDF 1.4) Printer’s mark annotation No      “Printer’s Mark Annotations” on page 643

TrapNet            (PDF 1.3) Trap network annotation No        “Trap Network Annotations” on page 643

Watermark          (PDF 1.6) Watermark annotation    No        “Watermark Annotations” on page 644

3D                 (PDF 1.6) 3D annotation           No        “3D Annotations” on page 791


            Markup Annotations

            As mentioned in Section 8.4.1, “Annotation Dictionaries”, the meaning of an an-
            notation’s Contents entry varies by annotation type. Typically, it is the text to be
            displayed for the annotation or, if the annotation does not display text, an alter-
            nate description of the annotation’s contents in human-readable form. In either
            case, the Contents entry is useful when extracting the document’s contents in
            support of accessibility to users with disabilities or for other purposes (see Sec-
            tion 10.8.2, “Alternate Descriptions”).

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