Collaborate on Paper docs

In Dropbox Paper, you can collaborate with people by:

  • Mentioning them in line and in comments
  • Commenting on text and images
  • Creating to-dos

Note: Up to 50 people can edit a Paper doc at any given time. If more than 50 people try to edit a doc, it will become view-only for any additional editors.

Not using Paper yet? See how Dropbox allows easy team content collaboration.


Mention a colleague anywhere in your Paper doc by typing @ (at) and then their name.

If the person you mention has a Dropbox account, their name is shortened to reflect the name on their account.

If you click a hyperlinked name, a dropdown appears. You can then search every shared doc that person created.


Comment on a doc:

  1. Highlight a line of text to bring up the formatting toolbar.
  2. Click the comment icon (a speech bubble) in the menu that appears.

You can @ (at) mention a colleague in your comment to send a notification.

Note: You can also create a comment by hovering your mouse pointer in the right margin beside a line of text.

Comment on a spot of an image:

  1. Click the image that you'd like to comment on.
  2. Click the circle icon with the plus sign to comment on a specific area of an image.
  3. Click the section of the image you'd like to comment on.
  4. Type your comment and click Post.
Image toolbar

You can link directly to a comment in a Paper doc:

  1. In a Paper doc, click the comment you want to link to.
  2. Click the timestamp (for example: 2 hours ago).
  3. The URL in your web browser will change. Copy this URL.

When someone clicks this URL, they're directed to that comment.


You can create to-dos that need to be accomplished and to assign them to colleagues.


Attribution shows you who wrote a section of a document. The name of the person who wrote a part of a document is shown beside the text. Attribution works even if you copy-and-paste from one Paper doc to another.

Note: Attribution doesn't always indicate the original writer of text. If the content is copy-pasted into Paper, the attributor may change:

  • Content copied from external sources, or pasted without formatting, is attributed to the person who pastes it
  • Content copied from another Paper doc is attributed to the original contributor
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