Understanding Document Cloud Review File and Comment Limits
Question details
The user wants to know the exact limitations for comments, file sizes, and participants when conducting a review using Document Cloud.

- Product
- Document Cloud
- Device & OS
- not provided
- Scenario
- Collaborating and reviewing PDF files online using Document Cloud.
- Observed behavior
- Seeking clarity on maximum allowable comments, participants, and file size limits to prevent download or syncing issues.
Check the current file size of your PDF and estimate the number of collaborators before initiating a large-scale review to avoid hitting system limits.
Adhering to Document Cloud Review Limits
Keep your review within the specified parameters to ensure stable syncing and successful file downloads.
Ensure your document has no more than 1,000 comments in total. The total comment content must remain under 1,572,864 bytes, and each individual comment should not exceed 2,500 characters.
When tagging collaborators, you can mention up to a maximum of 10 users per single comment.
Keep the total number of reviewers or participants to a maximum of 250 for a single document review.
If a review file with comments exceeds 50 MB, downloading the file may fail. Compress large PDFs before sending them out for review.
Collaborate on PDFs Effortlessly with WPS Office
WPS Office provides robust PDF editing and sharing capabilities through WPS Cloud, allowing you to review, comment, and collaborate with your team without strict bottlenecks.
- 1. Open your PDF in WPS Office: Launch WPS Office and open the PDF document you want to review.
- 2. Add annotations and comments: Navigate to the 'Comment' tab to add highlights, text boxes, and notes for your team.
- 3. Share the document: Click the 'Share' button in the top right corner to generate a secure collaboration link.
- 4. Collaborate via WPS Cloud: Invite participants to access the link, allowing them to review and edit the document seamlessly.

Frequently Asked Questions
Why does my reviewed PDF fail to download from Document Cloud?
Downloading may fail if the reviewed file, including all attached comments, exceeds 50 MB. To resolve this, try resolving or deleting unnecessary comments, or compress the original PDF file before starting the review.
How many users can I mention in a Document Cloud comment?
You can mention a maximum of 10 users within a single comment during a Document Cloud review. If you need to notify more people, you will need to create additional comments.
What is the maximum number of reviewers allowed on one document?
A single document review in Document Cloud supports up to 250 reviewers or participants. For larger groups, consider splitting the review across multiple document copies.
Is there a character limit for individual comments?
Yes, each individual comment is limited to a maximum of 2,500 characters. Keeping comments concise helps prevent syncing errors and ensures the total comment size stays within the 1.57 MB limit.




