How do I comment on Dropbox files?

Give feedback by adding comments to a preview of a file or image. You can comment on a whole file, or on a specific part of a file. Anyone who can access a file in Dropbox can leave a comment on the preview of a file.

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How to add a comment to a file

You can comment on a file from the file preview on dropbox.com or the Dropbox mobile apps.

To comment on a file:

  1. Open the preview of the file you want to comment on (either a shared link to a file, or a file on dropbox.com or the mobile apps).
  2. Click the arrow icon to show the comment pane.
  3. Click the text box.
  4. Type your comment.
  5. Click Post.

In your comment, you can:

Who can see comments

Anyone who can view a file can see its comments. If you shared the file, anyone with access can see comments on the file.

How to @mention people in comments

You can @mention someone to bring them into the conversation.

To @mention someone, type (at) and the beginning of their name. (Don't add a space after the @ symbol.) If that person is in your contacts, an autocomplete option is shown. If not, you can type the @ symbol, followed by their email address to notify them.

If a person doesn't already use Dropbox, you can @mention them by their email address. The person then receives an email notification about the comment.

If the person you @mention doesn't already have access to the file, a shared link is created to let them view and respond to the comment.

How to reply to comments

To reply to a comment:

  1. Open the preview of the file you want to comment on (either a shared link to a file, or a file on dropbox.com or the mobile apps).
  2. In the comments pane, hover your mouse cursor over an existing comment.
  3. Click Reply to open a text box.
  4. Click inside the textbox.
  5. Once finished with your reply, click Post.

How to comment on a specific part of a preview

There are three ways to leave a comment on a specific part of a document preview on dropbox.com.

Note: You can't leave comments on a specific part of a preview using the desktop or mobile apps.

How to comment on a section of text:

  1. Open a preview.
  2. Click and drag over a word or block of text.
  3. You'll see a text bubble icon. Click this icon to show the comment box.
Comment on specific text by clicking

How to comment on a specific place in the preview:

  1. Click the comment icon (a squre with a plus sign) in the comment pane, or click the comment icon in the preview menu.
  2. Click anywhere on the doc to show the comment box.
Enable comments icon

How to comment on a section of the preview:

  1. Click the comment icon (a squre with a plus sign) in the comment pane, or click the comment icon in the preview menu.
  2. Click-and-drag the comment box anywhere on the doc.
Comment on specific text by click-and-dragging

Supported file types for comments on specific parts of a preview

Image file types:

.bmp

.gif

.jpeg

.jpg

.psd

.png

.tif

.tiff

Document file types:

.ai

.eps

.doc

.docx

.pdf

.ppt

.pptx

.svg

How to comment on a specific time in a video

You can comment on a specific time in a video preview on dropbox.com. To comment on a specific time in a video:

  1. Open a link to a video file, or open a video file on dropbox.com.
  2. Navigate to the time in the video where you want to leave a comment.
  3. In the comments pane, check the box next to the time stamp.
  4. Type your comment into the textbox.
  5. Click Post.

Note: Commenting on a specific time in a video isn’t available to all users or on mobile devices. It is available on dropbox.com for all supported video file types.

How to navigate comments on specific parts of a preview

New comments appear in the comments pane in the doc or image preview. The comment also has a quick link, View on file, to the comment.

How are comments ordered in the comment pane?

A number is assigned to comments, ordered by the date comment is created.

The first comment is assigned "1," the second comment is assigned "2," and so on. A number is always tied to its comment and doesn't change if the comment is resolved or deleted. For instance, if comments "1" and "2" are deleted, comment "3" is still number "3."

Comment order can also be dictated by location in the document. Replying to a comment does not change its order.

Who is notified when I leave a comment?

The following people are notified when a comment is added to a file:

  • The file owner
  • Anyone who has commented on the file
  • Anyone who was @mentioned in the file

These people receive a notification on dropbox.com, in their email, and on their connected phones and tablets.

You can also reply to a comment you're tagged in by responding to the notification email. Your response appears in the file comment pane.

How to unsubscribe from comment notifications

To unsubscribe from comment notifications on dropbox.com:

  1. Sign in to dropbox.com.
  2. Navigate to the file you want to disable comments on.
  3. Click (ellipses) at the top of the preview. 
  4. Click Unsubscribe from notifications.

To unsubscribe from comment notification in the mobile app:

In the Dropbox mobile app, the bell icon in the comments pane indicates whether you're subscribed to comments. Tapping that icon toggles notifications on or off for that file.

Note: If you unsubscribe, you still receive notifications if someone @mentions you in a comment.

How to enable or disable comments on dropbox.com

Comments are enabled by default. To disable comments on a file:

  1. Sign in to dropbox.com.
  2. Navigate to the file you want to disable comments on.
  3. Click  (ellipses) at the top of the preview. 
  4. If the file is in your Dropbox account, you click Disable comments to disable all comments for that file.

To enable comments again, you can:

  • Click Enable comments in the comments pane, or
  • Select Enable comments from the dropdown menu

How to disable comments for a Dropbox Business team

To disable comments for your Dropbox Business team:

  1. Sign in to dropbox.com.
  2. Click Admin Console.
  3. Click Settings.
  4. Click Commenting.
  5. Toggle Commenting to Off.

Note: If comments are enabled, members of your team can disable comments on specific files.

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