Annotate [document=SurveyorNotes_April2025.pdf] to flag discrepancies: add comment highlights on [page=4] and [page=7]…
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.
| Feature | Purpose | Appearance |
|---|---|---|
| Highlight | To mark existing text without changing it, often for emphasis. | Colors the background of the text, making it stand out. |
| Text Box | To add new text or notes anywhere on the page, separate from existing content. | A box with new text that you can type inside. |
You should sanitize a PDF to protect private information. Comments and annotations are stored as a separate layer. If you do not sanitize, others might see your review notes, personal comments, or hidden data. Sanitizing removes these extra layers, making sure only the final content is shared. Use 'Protect > Sanitize' to clean your file.
If you use drawing markup tools, you will add shapes, lines, or freehand drawings instead of coloring text. This is useful for marking areas on images or diagrams, or for drawing attention to specific parts that are not text. Highlights are best for text, while drawing tools are better for visual elements.
Comments and Annotations are tools in Adobe Acrobat that let you add notes, highlights, and other marks to a PDF document. They help you review, collaborate, and remember important parts of a file without changing the original text. These tools create a separate layer of information on top of your document.