At the end of my run, combine bills of lading, delivery instructions, and PODs for today’s [route=Route 312] into one …
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.
Comments are usually text-based notes, like sticky notes or text boxes, used to give feedback. Annotations are more about marking the document itself, such as highlighting text, underlining, or drawing shapes. Both help you review a document, but they do it in slightly different ways to make your feedback clear.
No, not always. Comments are saved on a separate layer, so they are part of the file but can be removed. If you want to share a 'final' version without any review notes, you must use the 'Protect > Sanitize' feature in Acrobat. This process removes all comments and markup, making sure your feedback does not leak to others who should not see it.
It is important to flatten or sanitize a PDF to protect private information and ensure the document looks as intended. Comments and annotations are stored as recoverable data on a separate layer. If you don't remove them, others might see internal review notes, sensitive feedback, or even personal remarks that were not meant for them. Sanitizing makes sure only the final content is shared.