Share the marked‑up [drawing] PDF with the structural engineer, highlighting noted discrepancies, and request an updat…
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.
An annotation in Adobe Acrobat is a note, mark, or highlight that you add to a PDF to show extra information or a problem. It is important for checking discrepancies because it helps you clearly show what is wrong in the document, so others can see and fix it easily.
Yes, you can still use comments and annotations to mark discrepancies even if your scan is blurry. However, it may be harder to see the text and be sure about the errors, so try to make the scan clearer if possible before marking it.
You should flatten or sanitize a PDF after making annotations because comments and markups are kept as a separate layer in the file. If you do not remove them, anyone who opens the PDF can see your private notes, corrections, or review comments. This can be a problem if the file is shared outside your team or sent as a final version. Flattening or sanitizing makes sure that only the final content is visible, and no review information leaks out.
| Sticky Notes | Highlights |
|---|---|
| Let you add a written comment anywhere on the PDF | Mark text with color to show it is important or wrong |
| Can explain why something is a problem | Show which parts have a problem, but do not explain by themselves |