Decide whether the proposed labeling change requires a new submission and record the rationale by comparing the draft …
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.
Sticky notes are small, movable icons that open a text box when clicked, good for short notes without changing document layout. Text boxes are fixed areas where you type directly onto the page, useful for longer explanations that need to be visible without clicking. Both serve to add comments but differ in how they appear and interact with the document.
It is important to flatten or sanitize a PDF to protect privacy and prevent unintended information leaks. Comments and markups are stored as a separate data layer. If you share a 'final' document without sanitizing, old review notes, personal thoughts, or sensitive information might still be recoverable by others. Sanitizing removes this hidden data, ensuring only the intended content is shared and the document looks clean and professional.
Yes, if you are participating in a shared review of a document, you can use reaction emojis. These are quick ways to show your feelings or agreement with comments without typing a full response. This feature helps make collaborative reviews faster and more interactive for teams.