Apr 9, 2026
9 minutes read

How to Add Comments to a PDF

A practical guide for reviewing PDFs: add page-pinned comments that stay tied to the right spot, keep context clear, and move approvals forward without messy email threads.

Kreatli Guide: How to add comments to a PDF

How to add comments to a PDF is really about leaving feedback that stays tied to the right page and context. Instead of “see my notes below,” you want page-pinned comments that point to the exact spot—so designers, writers, and stakeholders can resolve feedback quickly without guessing.

What it means to “add comments to a PDF”

In a review workflow, “commenting on a PDF” means your note is anchored to a page (and often a specific location). The PDF stays the source of truth, and the comments provide the decisions, questions, and changes needed for the next version.

  • Page context: “Update headline on page 3” beats “Update the headline.”

  • Clear intent: explain what to change and why, not just what you dislike.

  • Resolution tracking: keep a record of what’s done vs what still needs attention.


When PDF comments beat edits in the doc itself

Editing directly in the source doc is great when you own the file. PDF comments are better when you are reviewing a locked export, collecting stakeholder feedback, or keeping approvals auditable.

  • Final proofing: typos, layout issues, spacing, and last-mile polish.

  • Stakeholder review: approvals and sign-off without rewriting the document.

  • External collaboration: clients can comment without touching the source file.


How to add comments to a PDF (step-by-step)

  1. Open the PDF in a review tool that supports page-pinned comments (and optionally markup).

  2. Navigate to the page you want to discuss and click the exact spot to anchor the note.

  3. Write the comment with clear action + intent (what to change and why).

  4. Share a review link so everyone comments in one place instead of starting new threads.

  5. Resolve comments as they’re addressed, then upload the next version when ready.

If you want the platform overview, see Add Comments to PDF.


Best practices for actionable PDF feedback

  • One idea per comment: split mixed feedback into separate notes so they can be resolved independently.

  • Write for action: “Change X to Y” is easier than “This feels off.”

  • Add the why: explain the intent (brand, clarity, compliance) so edits don’t ping-pong.

  • Confirm success: define what “done” looks like (“matches style guide,” “fits in safe area,” “uses approved copy”).


Try adding comments to a PDF now

The interactive preview below is a lightweight example of the workflow: upload a PDF, think in page-pinned comments, and keep feedback in one place. When you’re ready, start a 7-day trial or book a demo.

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project-brief.pdf
PDF review

Upload a PDF to get started

Drag and drop a PDF here, or click the button below

Comments
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Kate L.
Jul 24
p. 1 Let's make sure we display QR code in the marked place.
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Kate L.
Jul 25
p. 2 We should probably blur this part.

Free tools, guides, and platform features

Below are free tools that pair with PDF review, plus related guides and platform features to explore next.

Free tools for PDF review

Try tools that complement PDF commenting, markup, and review workflows.

  • PDF ReviewerReview PDFs online with location-pinned comments, annotations, and approvals. Share with clients; recipients do not need a Kreatli account.

  • PDF AnnotatorAdd location-pinned comments, highlights, drawings, and markup to PDFs. Share with clients; recipients do not need a Kreatli account.

  • Video Feedback ToolGive frame-accurate feedback on videos with comments, annotations, and markup. Share review links with clients; recipients do not need a Kreatli account.

  • Image ReviewerReview images online with location-pinned comments, annotations, and approvals. Share with clients; recipients do not need a Kreatli account.

Browse all free tools.

More guides and examples

Read more about proofing, approvals, and version-aware review workflows.

More resources

Capabilities that support PDF commenting, versioning, secure storage, and approvals.

  • Add Comments to PDFAdd comments to PDF with location-pinned, threaded feedback. Collaborate on PDFs without drawing tools.

  • Annotate PDFAnnotate and review PDFs with comments and markup. Add feedback directly on PDFs for precise, location-pinned review.

  • Secure Asset StorageEnterprise-grade storage for creative assets. Organize files, track versions, and protect your media with reliable infrastructure.

FAQ: Add comments to a PDF

What’s the difference between “commenting” and “annotating” a PDF?

Commenting usually means leaving written notes (often pinned to a spot or a page). Annotating can include comments plus visual markup like highlights, shapes, arrows, or drawing. In practice, good review workflows support both: comments explain intent, annotations show exactly where.

How do I keep PDF comments tied to the right page and spot?

Use a review interface that pins each comment to a specific page and location. That way, “Fix this heading” is always anchored to the exact spot, and reviewers can jump directly to the comment instead of hunting through a long thread.

Can clients leave PDF comments without creating an account?

Yes—if you share a guest-friendly review link, external stakeholders can open the PDF and leave page-pinned comments without signing up. This keeps feedback centralized while reducing friction for clients.

What should a good PDF comment include?

A good PDF comment includes the “what” (the change), the “why” (the intent), and a success check (how to know it’s done). When possible, reference the page section and keep one idea per comment so it’s easy to resolve.

How do I handle new versions of a PDF during review?

Keep feedback organized by version. When a new revision is uploaded, reviewers should be able to see which comments were addressed, what’s still open, and which notes applied to the prior version so nothing gets lost across rounds.

Still have questions?

Reach us at support@kreatli.com and we will help you set up a PDF review flow that fits your team.

Ready to keep PDF feedback organized?

Collect page-pinned comments, keep versions clear, and move approvals forward without losing context.
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