Installers are on site tomorrow and asked for annotated photos with critical measurements. I’m juggling three projects…
Open your PDF file in Adobe Acrobat.
Click the Comment button in the toolbar to display the commenting tools.
Select the annotation tool you want to use, such as Note, Highlight, Text Box, or Draw.
Click on the PDF page where you want to add your comment or annotation.
Type your comment or draw your annotation as needed.
Click away from the annotation or press Escape to save your comment or annotation.
You can use multiple annotation types in one session, such as highlighting text and adding sticky notes for detailed feedback.
This runs in the Acrobat app - there is no separate API for this task.
Highlighting is used to make specific text or areas stand out, often with a transparent color, like using a physical highlighter pen. Drawing markup tools, however, let you draw shapes, lines, or freehand marks directly on the document. This is useful for circling objects, drawing arrows to point things out, or creating custom shapes that highlighting cannot do. Both are types of annotations, but they serve different visual purposes for drawing attention or adding specific graphical notes.
Flattening comments in a PDF is crucial because comments and markups are initially stored as a separate, editable layer. If you share a PDF with unflattened comments, others can easily see, modify, or even remove your review notes. This could lead to misunderstandings, loss of important feedback, or the accidental leakage of sensitive internal discussions. Flattening merges these layers into the main document, making the comments a permanent part of the file and preventing unauthorized changes or data leaks. It ensures the 'final' document truly represents the intended version without hidden, editable review data.
Reaction emojis are small graphical icons, like a thumbs-up or a smiley face, that you can add to comments in shared PDF reviews. They provide a quick and informal way to show your feelings or agreement with a specific comment without typing out a full response. For example, you can use a 'heart' emoji to show you like an idea or a 'question mark' to show confusion. This helps teams communicate faster and understand feedback more easily during a collaborative document review process, making interactions more dynamic and less formal than traditional text replies.