Annotate a PDF for Document Review
A document review is only useful if the person reading your feedback can tell what you meant and where you meant it. Scattering vague notes in an email defeats the point. FixTools lets you annotate the PDF itself, so every comment sits on the page it refers to. You upload the file, type each note, set the page, and click the precise spot on the preview where the box should land, along with an author name so it is clear who raised each point. When you process, the tool renders the comments into the pages as visible text boxes and returns a marked-up PDF you can pass to the next reviewer or the author. The file is uploaded over an encrypted connection for processing and deleted automatically afterward. It turns a loose set of remarks into a structured, page-anchored review that anyone can follow without a call to explain it.
- Cost
- Free tier
- Sign-up
- Not required
- Processing
- Tool-specific
- Privacy
- Clearly disclosed
Anchor every comment to the exact page and spot
Attribute notes with an author name for clear ownership
Comments render as visible boxes anyone can read
PDF Tool
Add Comments PDF
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🚀Open Add Comments PDFFree tier · No account · Limits shown before processing
Page-anchored comments make a review easier to act on
When feedback lives in an email that says "the second paragraph on the pricing page needs work", the author has to hunt for the spot and guess at the exact concern. Half the review time gets lost in that translation, and points get missed. Comments that sit on the page remove the guesswork entirely.
By anchoring each note to a location and attributing it to a named reviewer, FixTools produces a document that reads like a proper markup. The author works through it point by point, sees precisely what each comment refers to, and knows who to follow up with. For multi-round reviews, that clarity is the difference between one clean pass and several confused ones.
How to use this tool
Upload the document, then for each point set the page, type the note, name yourself as author, and click where it belongs. Process and share the marked-up PDF.
How It Works
Step-by-step guide to annotate a pdf for document review:
- 1
Open the tool
Launch FixTools Add Comments to PDF in your browser and upload the document you are reviewing.
- 2
Go to the relevant page
Use the preview to turn to the page your first point concerns.
- 3
Write and attribute the note
Type the comment and set the author name so the point is clearly yours.
- 4
Click the exact location
Click the preview where the comment box should sit, next to the text or figure it refers to.
- 5
Process and share
Once all points are added, run the tool and send the marked-up PDF to the author or next reviewer.
Real-world examples
Common situations where this approach makes a real difference:
Contract redline
A reviewer flags concerns on specific clauses of a draft agreement before it goes back to the other side.
Report sign-off
A manager leaves change requests on the exact figures and paragraphs that need revising before a report is finalized.
Design proof
A client marks up a PDF proof, dropping a note beside each element that should change.
Grant application
A colleague comments on the sections of a proposal that need strengthening ahead of a submission deadline.
Pro tips
Get better results with these expert suggestions:
Number the pages first
Run Add Page Numbers before reviewing so every comment can cite a page that everyone sees the same way.
Keep each note to one point
One comment per issue is easier to act on than a single box crammed with several unrelated remarks.
Highlight then comment
Use the Highlight PDF tool to mark the passage, then drop a comment beside it explaining the change.
Attribute consistently
Use the same author name throughout so the author can trace every point back to you in a multi-reviewer file.
Frequently asked questions
Related guides
More use-case guides for the same tool:
Related tools
Other tools you might find useful:
Highlight PDF
Highlight the passages your comments refer to.
Add Page Numbers
Number pages so comments are easy to cite.
PDF Merger
Combine reviewed files back into one document.
Add Comments to a PDF on Mac
Add comments to a PDF on your Mac without Preview or extra software. Type a note, click to place it, and download the annotated file from Safari or Chrome.
Add Comments to a PDF Online
Add comments to a PDF online with nothing to install. Upload the file, type your notes, click to place them, and download the annotated PDF from any browser.
Add Comments to a PDF on Windows
Add comments to a PDF on Windows without Acrobat or extra software. Type notes, click to place them in Edge or Chrome, and download the annotated file.
Add Comments to a PDF, Free
Add comments and notes to a PDF for free with no account and no watermark. Type your note, click where it goes, and download the annotated file in seconds.
Add Comments to a PDF Without Adobe
Add comments to a PDF without Adobe Acrobat or an account. Type notes, click to place them in your browser, and download the annotated file free.
Add Comments to a PDF for Team Collaboration
Add attributed comments to a PDF so a team can collaborate on one file. Place notes on the exact spot, name each author, then pass the marked-up file on.
Ready to get started?
Open Add Comments PDF to review its free limits and processing method.
Open Add Comments PDF →Free tier · No account needed · Transparent limits