User Guide Cancel

Commenting on 3D designs in PDFs

  1. Acrobat User Guide
  2. Introduction to Acrobat
    1. Access Acrobat from desktop, mobile, web
    2. Introducing the new Acrobat experience
    3. What's new in Acrobat
    4. Keyboard shortcuts
    5. System Requirements
  3. Workspace
    1. Workspace basics
    2. Opening and viewing PDFs
      1. Opening PDFs
      2. Navigating PDF pages
      3. Viewing PDF preferences
      4. Adjusting PDF views
      5. Enable thumbnail preview of PDFs
      6. Display PDF in browser
    3. Working with online storage accounts
      1. Access files from Box
      2. Access files from Dropbox
      3. Access files from OneDrive
      4. Access files from SharePoint
      5. Access files from Google Drive
    4. Acrobat and macOS
    5. Acrobat notifications
    6. Grids, guides, and measurements in PDFs
    7. Asian, Cyrillic, and right-to-left text in PDFs
  4. Creating PDFs
    1. Overview of PDF creation
    2. Create PDFs with Acrobat
    3. Create PDFs with PDFMaker
    4. Using the Adobe PDF printer
    5. Converting web pages to PDF
    6. Creating PDFs with Acrobat Distiller
    7. Adobe PDF conversion settings
    8. PDF fonts
  5. Editing PDFs
    1. Edit text in PDFs
    2. Edit images or objects in a PDF
    3. Rotate, move, delete, and renumber PDF pages
    4. Edit scanned PDFs
    5. Enhance document photos captured using a mobile camera
    6. Optimizing PDFs
    7. PDF properties and metadata
    8. Links and attachments in PDFs
    9. PDF layers
    10. Page thumbnails and bookmarks in PDFs
    11. PDFs converted to web pages
    12. Setting up PDFs for a presentation
    13. PDF articles
    14. Geospatial PDFs
    15. Applying actions and scripts to PDFs
    16. Change the default font for adding text
    17. Delete pages from a PDF
  6. Scan and OCR
    1. Scan documents to PDF
    2. Enhance document photos
    3. Troubleshoot scanner issues when scanning using Acrobat
  7. Forms
    1. PDF forms basics
    2. Create a form from scratch in Acrobat
    3. Create and distribute PDF forms
    4. Fill in PDF forms
    5. PDF form field properties
    6. Fill and sign PDF forms
    7. Setting action buttons in PDF forms
    8. Publishing interactive PDF web forms
    9. PDF form field basics
    10. PDF barcode form fields
    11. Collect and manage PDF form data
    12. About forms tracker
    13. PDF forms help
    14. Send PDF forms to recipients using email or an internal server
  8. Combining files
    1. Combine or merge files into single PDF
    2. Rotate, move, delete, and renumber PDF pages
    3. Add headers, footers, and Bates numbering to PDFs
    4. Crop PDF pages
    5. Add watermarks to PDFs
    6. Add backgrounds to PDFs
    7. Working with component files in a PDF Portfolio
    8. Publish and share PDF Portfolios
    9. Overview of PDF Portfolios
    10. Create and customize PDF Portfolios
  9. Sharing, reviews, and commenting
    1. Share and track PDFs online
    2. Mark up text with edits
    3. Preparing for a PDF review
    4. Starting a PDF review
    5. Hosting shared reviews on SharePoint or Office 365 sites
    6. Participating in a PDF review
    7. Add comments to PDFs
    8. Adding a stamp to a PDF
    9. Approval workflows
    10. Managing comments | view, reply, print
    11. Importing and exporting comments
    12. Tracking and managing PDF reviews
  10. Saving and exporting PDFs
    1. Saving PDFs
    2. Convert PDF to Word
    3. Convert PDF to JPG
    4. Convert or export PDFs to other file formats
    5. File format options for PDF export
    6. Reusing PDF content
  11. Security
    1. Enhanced security setting for PDFs
    2. Securing PDFs with passwords
    3. Manage Digital IDs
    4. Securing PDFs with certificates
    5. Opening secured PDFs
    6. Removing sensitive content from PDFs
    7. Setting up security policies for PDFs
    8. Choosing a security method for PDFs
    9. Security warnings when a PDF opens
    10. Securing PDFs with Adobe Experience Manager
    11. Protected View feature for PDFs
    12. Overview of security in Acrobat and PDFs
    13. JavaScripts in PDFs as a security risk
    14. Attachments as security risks
    15. Allow or block links in PDFs
  12. Electronic signatures
    1. Sign PDF documents
    2. Capture your signature on mobile and use it everywhere
    3. Send documents for e-signatures
    4. Create a web form
    5. Request e-signatures in bulk
    6. Collect online payments
    7. Brand your account
    8. About certificate signatures
    9. Certificate-based signatures
    10. Validating digital signatures
    11. Adobe Approved Trust List
    12. Manage trusted identities
  13. Printing
    1. Basic PDF printing tasks
    2. Print Booklets and PDF Portfolios
    3. Advanced PDF print settings
    4. Print to PDF
    5. Printing color PDFs (Acrobat Pro)
    6. Printing PDFs in custom sizes
  14. Accessibility, tags, and reflow
    1. Create and verify PDF accessibility
    2. Accessibility features in PDFs
    3. Reading Order tool for PDFs
    4. Reading PDFs with reflow and accessibility features
    5. Edit document structure with the Content and Tags panels
    6. Creating accessible PDFs
    7. Cloud-based auto-tagging
  15. Searching and indexing
    1. Creating PDF indexes
    2. Searching PDFs
  16. Multimedia and 3D models
    1. Add audio, video, and interactive objects to PDFs
    2. Adding 3D models to PDFs (Acrobat Pro)
    3. Displaying 3D models in PDFs
    4. Interacting with 3D models
    5. Measuring 3D objects in PDFs
    6. Setting 3D views in PDFs
    7. Enable 3D content in PDF
    8. Adding multimedia to PDFs
    9. Commenting on 3D designs in PDFs
    10. Playing video, audio, and multimedia formats in PDFs
    11. Add comments to videos
  17. Print production tools (Acrobat Pro)
    1. Print production tools overview
    2. Printer marks and hairlines
    3. Previewing output
    4. Transparency flattening
    5. Color conversion and ink management
    6. Trapping color
  18. Preflight (Acrobat Pro)
    1. PDF/X-, PDF/A-, and PDF/E-compliant files
    2. Preflight profiles
    3. Advanced preflight inspections
    4. Preflight reports
    5. Viewing preflight results, objects, and resources
    6. Output intents in PDFs
    7. Correcting problem areas with the Preflight tool
    8. Automating document analysis with droplets or preflight actions
    9. Analyzing documents with the Preflight tool
    10. Additional checks in the Preflight tool
    11. Preflight libraries
    12. Preflight variables
  19. Color management
    1. Keeping colors consistent
    2. Color settings
    3. Color-managing documents
    4. Working with color profiles
    5. Understanding color management

Learn how to add comments to the 3D designs in PDFs using Adobe Acrobat's different commenting tools. 

Before you begin

We're rolling out a new, more intuitive product experience. If the screen shown here doesn’t match your product interface, select help for your current experience.

In the new experience, the tools appear on the left side of the screen.

Comments added to a 3D model are associated with specific views that are defined when the comments are added. If the view is changed, for example,  if you rotate or move the 3D object, the comments won't be visible anymore.

Following are the three ways to add comments to a 3D model in PDF:

  • Add 3D Comment option on the 3D toolbar to add comments to specific parts of a 3D model.
  • Add comments option on the All tools pane to add various comment types to a 3D view.
  • Convert a 3D measurement into a comment.

Adding comments to 3D model views requires version 7.0.7 or later of Acrobat or Reader.

When the view of a 3D object is changed, any comment associated with that object disappears (right)
When the view of a 3D object is changed, any comment associated with that object disappears (right).


If you don’t want to associate a comment with a 3D view, add the comment outside the 3D object area.

Add comments from the 3D toolbar

The 3D comment tool is used to add measurements of different parts of a 3D model. These comments are linked to those specific parts. Adding 3D comments creates a new view called 3D Comment View, and are listed as components in the Model Tree. You can edit and remove 3D comments the same way as measurements.

  1. Select the Add 3D Comment option on the 3D toolbar.


    If the Add 3D Comment option isn't visible in the toolbar, right-click on the 3D model, and then select Tools > Add 3D Comment. You can also expand the default 3D toolbar, by right-clicking on the 3D model, and then selecting Tools > Expand 3D Tools.

  2. Select the part from the 3D model where you want to add a 3D comment.

  3. In the Enter Comment String dialog box, add your comment.

Add comments from the comment toolset

When you add comments by using the comment toolset, a new view is created in the Model Tree called CommentView.


Adobe Reader users can only add comments to a PDF if the document author enables commenting for that PDF.

  1. Go to All tools > Add comments.

    The comment toolset is displayed in the Quick action toolbar.

  2. Select the Add a comment from the Quick action toolbar.

  3. Select the 3D model area where you want to add the comment. Your comment is added.

    A new view definition is also created in the Model Tree with a default name such as “CommentView1.”

  4. To add more comments, do one of the following:
    • To create an additional comment in a view, make sure that the commenting view you want is selected in the Model Tree. Then, select the 3D model area.

    • To create an additional comment in a new commenting view, make sure that no commenting view is selected in the Model Tree. Then, select the 3D model area.


If you delete one of these auto-generated commenting views, the associated comments are still available. You can view and select them in the Comments panel on the upper right of the screen or in the Model Tree, where they are listed under the views. Selecting a comment switches the 3D model to the same viewing configuration it had when the comment was added.

Convert 3D measurements to comments

Individual measurements can be converted to comments so that they can be reviewed and annotated like the usual comments.

  1. In the View pane of the Model Tree, right-click the plus sign next to the measurement view to display the list of individual measurements.


    The measurement view is available only when you have added measurements by using the 3D Measurement Tool .

  2. Right-click a measurement name, and then select Convert To Comment.

    Convert Measurement to Comments
    Convert measurements into comments

Display comments for a 3D model

  1. To display comment on a 3D model, try one of the following:

    • In the Model Tree, select a view that contains comments.

    • Select All tools > Add comments, the comments are displayed in the comment list in the right pane.

    • In the View pane of the Model Tree, select OptionsList Comments.

    List Comments
    Enable the List Comments option from the View pane of the Model Tree

  2. Double-click a comment to open its comment window.
  3. Repeat steps 1 and 2 to check other comments associated with other views.

Selecting a comment displays the 3D model in the same view as when the comment was added.


Get help faster and easier

New user?

Adobe MAX 2024

Adobe MAX
The Creativity Conference

Oct 14–16 Miami Beach and online

Adobe MAX

The Creativity Conference

Oct 14–16 Miami Beach and online

Adobe MAX 2024

Adobe MAX
The Creativity Conference

Oct 14–16 Miami Beach and online

Adobe MAX

The Creativity Conference

Oct 14–16 Miami Beach and online