Add Comments to a PDF, Free
Adding a few notes to a PDF should not push you toward a subscription or a trial that stops working after a handful of documents. FixTools keeps it free for everyday files. You upload the PDF, type your comment, choose the page and an author name, then click the spot on the live preview where the note should land. When you process, the tool stamps each comment onto the page as a visible text box and hands the finished PDF straight back to you. There is no account to create and no watermark added to the result. The file is uploaded over an encrypted connection so the server can render the comments into the page, and it is deleted automatically once the annotated copy is returned. For anyone who just needs to leave feedback on a report, mark up a draft, or flag a question on a form, this does the job without funneling you toward a paid plan.
- Cost
- Free tier
- Sign-up
- Not required
- Processing
- Tool-specific
- Privacy
- Clearly disclosed
Free for everyday single files, no trial countdown
No account or email required to download
No watermark stamped on the annotated PDF
PDF Tool
Add Comments PDF
Open the tool to see its processing method, supported formats, and current limits.
🚀Open Add Comments PDFFree tier · No account · Limits shown before processing
What free PDF comment tools usually hold back
Plenty of sites let you type a comment and then quietly gate the download. The export asks for an account, stamps a watermark across the page unless you upgrade, or caps you at a couple of documents a month. Leaving a note is a small task, so those limits exist to sell a plan rather than to cover any real work.
FixTools keeps everyday files free and returns the annotated PDF with only your comments added. The file is uploaded so the server can draw each note into the page precisely, and it is removed once processing finishes, so nothing lingers after your download. You get the marked-up copy and get on with your day.
How to use this tool
Upload your PDF, type a comment, and click where it should sit on the preview. Repeat for each note, then process and download the annotated file for free.
How It Works
Step-by-step guide to add comments to a pdf, free:
- 1
Open the tool
Launch FixTools Add Comments to PDF in your browser. There is nothing to install and no account to create.
- 2
Upload your PDF
Choose the PDF you want to annotate from your device. The first page loads into a live preview.
- 3
Write a comment
Type the note, set the page number, and add an author name so it is clear who left it.
- 4
Click to place it
Click the exact spot on the preview where the comment box should appear, then add it to the list.
- 5
Process and download
Run the tool and save the annotated PDF. There is no watermark and no charge for everyday files.
Real-world examples
Common situations where this approach makes a real difference:
Marking up a draft
A writer leaves a handful of change notes on a draft chapter and sends the annotated PDF back the same evening.
Flagging a form
Someone marks the two fields that were filled in wrong on a returned form and passes it back for correction.
Occasional reviewer
A person who reviews a document once a month does not want a subscription just to leave three comments.
Quick question
A colleague drops a single question onto page four of a report and emails it on for an answer.
Pro tips
Get better results with these expert suggestions:
Bookmark the tool
Since there is no account, bookmark the page so it is one tap away the next time a document needs notes.
Name the author clearly
Set the author field to your name so the recipient can tell your comments apart from anyone else who marked the file.
Review before processing
Comments are baked into the page permanently, so check the wording and placement of each one before you run the tool.
Compress if it grows
If the annotated file needs to clear an email size cap, run it through the PDF Compressor afterward, also free.
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.
PDF Compressor
Shrink the commented PDF before emailing it.
PDF Merger
Combine reviewed files back into one document.
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 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.
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 Feedback to a PDF for Grading
Add feedback comments to a student PDF for grading. Place attributed notes on the exact line, process, and return a clear marked-up copy students can follow.
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 Multiple PDFs at Once
Add the same comments to several PDFs in one batch. Upload multiple files, set your notes once, process them together, and download every annotated copy.
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