Proofing allows your team to streamline and manage content creation and approval directly in Smartsheet. Anyone can easily review, edit, and approve images, videos, documents, and PDFs. Proofing also integrates with Adobe Creative Cloud, so users don't have to bounce back and forth between apps.

Upload your file to a proof and send a review request to colleagues, vendors, clients, and more, even if they’re not shared to your sheet. Reviewers can pin comments, make annotations, discuss their feedback with each other, and log their approval decisions. Upload a new version to the proof at any time to continue the process. Previous versions of the proof will remain available in view-only mode.


Use Proofing to Collaborate on Content

With Smartsheet proofs, you and your team can quickly review and approve a variety of content. Use the simple, streamlined proofing process to upload file images, videos, PDFs, and Microsoft Office documents, control file versions, request and collect annotated feedback, and get approvals from stakeholders.

With supported file types, there's full integration for previewing and annotation. With unsupported file types, you can still take advantage of Smartsheet's proofing features to manage communication and request updates. 

Add a proof

With Proofing, you can add proofs for review.

  1. From the row in your sheet or report where you want to add the proof, click the Add a proof icon  in the Proofs column to open the full screen proofing view.
  2. Click Upload to locate and upload the file that you want to proof (or, if you know where the file is, drag it directly into the window).
    Upload file

You can now begin collaborating on the proof.

Supported File Types

You can create only one proof per row, using any one of the file types in the table below.

Content Type

Supported File Types



jpg, jpeg, png, bmp, gif

Full support for previewing and annotating a single image or multiple images directly in the proof.


mp4, avi, mov

Full support for previewing and annotating a single video in the proof.



Full support for previewing and annotating a single PDF in the proof.


doc, docx, dot, rtf, xls, xlt, xlsx, xltx, ppt, pot, pps, pptx, potx, ppsx

Full support for previewing and annotating a single document in the proof. 

Anything attached to a Smartsheet item

Any file type that can be attached to a Smartsheet item.

You cannot preview or annotate the content directly in the proof.


However, you can request feedback, leave comments, approve or require changes, manage versions, and mark the proof as complete. 

TIP: Use proofs for work-in-progress files that require review, and use attachments to upload completed files.


  • The Smartsheet extension for Adobe Creative Cloud now supports multi-image upload in Photoshop, Illustrator, and InDesign.
  • To upload a new version of a file, click the Version dropdown menu in the upper-left portion of the proof. For more information about creating versions for proofing, see the Work with versions of proofs section of this article.

Collaborate on a proof

Once a proof is added to your sheet, collaboration can begin. How you choose to collaborate will depend on whether reviewers have access to your sheet and whether you need approval decisions from them.

Request review and approval

You can invite anyone with a valid email address to review your proof (including unlicensed users or people outside of your organization).

To request feedback:

  1. Open the proof that you want others to review and click Invite at the top of the comments section.
  2. In the Invite Reviewers window that appears, type the names or email addresses of the people that you want to review your proof.
  3. Verify that the information in the Subject and Message boxes convey the information that you want your reviewers to have.
  4. Click Send.

The people you ask for feedback will receive a review request that links directly to an external review page. When these recipients click on the request, they will be taken to a review page outside of Smartsheet. For more information about how to review a proof sent in a review request, see Respond to a Proofing Request.

You cannot request reviews of proofs whose rows are locked. For more information on Lock and Unlock capabilities, see Lock or Unlock Columns and Rows.

Collect feedback without approvals

If you want more informal feedback from people with access to your sheet, you can @mention them in a comment in your proof. They will not be able to approve or require changes unless you have also sent them a review request.

If you @mention someone who isn't shared to the sheet—and you are the Owner, an Admin, or shared with Editor - Can Share permissions—you'll be prompted to share the sheet and give them appropriate permissions so that they can have access to the comment. For more information, see Sharing Permission Levels.)

Work with versions of proofs

When you make changes to a file that’s in a proof (likely based on the feedback you received as part of the review process), you can upload the revised version to keep your proof up to date.

Upload a version of a proof

To upload a new version of a file to a proof:

  1. Click the Version dropdown menu in the upper-left portion of the proof.
  2. Select Create New Version.
  3. Click Upload to locate and upload the file that you want to proof (or, if you know where the file is, drag it directly into the window).

That’s it! The new file is now uploaded as the current version of your proof. The Version indicator will now show that multiple versions of the proof exist. All previous versions will be locked. 

Proof versions

Here are some things to keep in mind about proof versions:

  • Locked versions can be viewed, but can no longer be annotated or commented on.
  • A person shared to the sheet as an Admin (must be a licensed admin) will be able to delete comments from previous versions.
  • Any user that has access to the sheet will be able to access the previous proofs in the proofing container.
  • Any outside requests and outside access to previous versions will be cancelled.
  • Request responses stay with the version—this includes the comments and Pending, Rejected, Approved results.

Delete a version of a proof

To delete a version of a proof, click the More Options icon  and select Delete Latest Version.

When you delete the latest version:

  • The files are removed.
  • All comments on the version are deleted.
  • All outstanding review requests are cancelled.
  • The previous version becomes the active version and is available for review.

Deleted versions and deleted proofs cannot be recovered.

Complete a proof 

You can mark a proof as complete to make it read-only in your sheet and the external review page.

To set a proof to complete, you must be a licensed sheet Owner, Admin, or Editor.

When a proof is complete, no one can upload new versions, add, or edit comments. People can still review comments and download the files in each version.
The sheet Owner and Admins can delete comments in a completed proof. The sheet Owner, Admins, and Editors also have the option to set the proof back to incomplete.

To mark a proof as complete, open the proof in your sheet and click the Completed Proof toggle button at the top of the full screen view.

Complete Proof

That’s it! The proof is now complete. 

NOTE: If you would like to allow commenting or additional version uploads for the proof again, click the same toggle button to set the proof back to incomplete.

Cancel a review request

If you send out a review request, but later decide to cancel it, click the More Options icon  and select Cancel Review.

Cancel review request

When a review request is canceled, any responses captured in the request will be deleted and the recipients will no longer have access to the proof.