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Chapter 10. Annotating PDFs > Understanding the Types of Annotations

Understanding the Types of Annotations

Acrobat offers several types of annotations, each with its own usefulness:

  • Notes are collapsible text boxes that contain information about a specific area in a document. Although notes can exist by themselves, most other types of annotations also contain (or can contain) notes (Figure 10.1).

    Figure 10.1. An expanded note in Acrobat is a good place to write detailed information about a specific area in a PDF document.

  • Free text comments appear as text directly in a PDF. Unlike notes, they do not need to be expanded to be seen (Figure 10.2).

    Figure 10.2. Free text annotations are good for marking places in a PDF document that require brief notes.

  • Sound attachments contain recorded audio. Audio annotations are useful for commenting quickly on a specific area of a PDF file (Figure 10.3).

    Figure 10.3. A sound-attachment annotation consists of a recording you create in Acrobat.

  • Stamps are custom graphics that can be applied to any page of a document (Figure 10.4).

    Figure 10.4. A sample stamp annotation. I chose the “Approved” stamp to indicate that this PDF is final.

  • File attachments are useful for attaching a source file or a file that contains updated or corrected information (Figure 10.5).

    Figure 10.5. A file-attachment annotation is a file that's embedded within an existing PDF. The solid pushpin represents the presence of a file attachment in a document; the hollow pushpin is the File Attachment tool's mouse pointer.

  • Graphical-markup annotations are useful for using graphic objects as annotations. Acrobat allows you to create objects such as lines, boxes, and ellipses for use as annotations. Acrobat even offers a free-form drawing tool for custom marking (Figure 10.6).

    Figure 10.6. Multiple graphical annotations mark up this passage of text.

  • Text annotations apply to specific areas of text. You use the Underline and Highlight tools to create text annotations (Figure 10.7). To cross out passages of text, you can use the Strikethrough tool.

    Figure 10.7. The Highlight annotation tool highlights areas of text.



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