Add Comments to a PDF on Mac
On a Mac you can mark up a PDF in Preview, but its annotation tools are fiddly for anything beyond a quick highlight, and placing a tidy comment box exactly where you want it takes patience. FixTools gives you a cleaner path. Open the tool in Safari or Chrome, upload the PDF, and the first page appears in a live preview. You type each comment, pick the page, add an author name, and click the precise spot where the note should sit. Process the file and a clean annotated PDF downloads to your Mac, ready to email or drop into a shared folder. Because the comments are rendered into the page on the server, the file is uploaded over an encrypted connection and deleted automatically once your download is ready. It is a quick, consistent way to leave feedback on a Mac without wrestling with Preview's markup bar or installing anything heavier.
- Cost
- Free tier
- Sign-up
- Not required
- Processing
- Tool-specific
- Privacy
- Clearly disclosed
Runs in Safari or Chrome on macOS, nothing to install
Cleaner comment placement than Preview markup
Click the live preview to position each note exactly
PDF Tool
Add Comments PDF
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A cleaner alternative to Preview markup
Preview is fine for a stray highlight, but its comment and note tools were never built for structured feedback. Notes collapse into small icons you have to hover over, boxes are awkward to size, and the result can look messy when someone else opens the file in a different reader.
FixTools renders each comment as a clear, visible text box positioned exactly where you clicked, with an author name attached. The output looks the same in any PDF reader, not just Preview, so the person you send it to sees your feedback the way you laid it out. For reviews that other people will read, that consistency is worth more than staying inside a built-in tool.
How to use this tool
Open the tool in Safari or Chrome on your Mac, upload the PDF, type a comment, and click where it goes. Process the file and it downloads to your Mac.
How It Works
Step-by-step guide to add comments to a pdf on mac:
- 1
Open the tool in your Mac browser
Launch FixTools Add Comments to PDF in Safari or Chrome. There is nothing to install.
- 2
Upload the PDF
Pick the file from Finder, iCloud Drive, or your Downloads. The first page loads into the preview.
- 3
Type your comment
Enter the note, set the page number, and add an author name.
- 4
Click to place it
Click the spot on the preview where the comment box should appear, then add it to the list.
- 5
Process and download
Run the tool and the annotated PDF saves to your Mac, ready to share.
Real-world examples
Common situations where this approach makes a real difference:
MacBook review on the go
A designer marks up a proof from a MacBook in a cafe and emails the annotated PDF straight back.
Preview falls short
Someone who finds Preview markup clumsy wants tidy, attributed comment boxes instead of collapsed note icons.
Sharing beyond Apple
A Mac user leaves feedback that a colleague on Windows will open, so the comments need to display consistently.
Quick sign-off
A manager on an iMac drops approval notes on a document between meetings and forwards it on.
Pro tips
Get better results with these expert suggestions:
Use full-screen Safari
A bigger window makes the preview larger, so clicking the exact comment position is easier.
Drag from Finder
You can drag a PDF straight from Finder onto the upload area rather than browsing for it.
Trackpad taps count as clicks
A single trackpad tap places the comment position, so you do not need a mouse to be precise.
Compress before emailing
If the annotated file is large, run it through the PDF Compressor so it clears mail attachment limits.
Frequently asked questions
Related guides
More use-case guides for the same tool:
Related tools
Other tools you might find useful:
PDF Compressor
Shrink the commented PDF before emailing it.
Highlight PDF
Highlight the passages your comments refer to.
Sign PDF
Add your signature once the review is settled.
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.
Annotate a PDF for Document Review
Annotate a PDF for review by adding dated, attributed comment boxes to specific pages. Click to place each note, process, and share a clean marked-up file.
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 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 Notes to a PDF for Studying
Add study notes to a PDF textbook or lecture handout. Type your notes, click to place them on the page, and download an annotated copy to review anywhere.
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.
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