How to Add Notes and Comments to a PDF Free

Printing a PDF to scribble a comment on it, then scanning it back in, is a workflow that shouldn't exist anymore.

FlexFiles PDF Editor lets you comment directly on the digital file.

Why This Beats Printing

• Digital from the start — no scanning a marked-up page back in.
• Easy to share — send the commented file, not a photo of a printout.
• Multiple reviewers can leave feedback on the same file without conflicting paper copies.

How to Add Comments

• Upload the PDF.
• Use sticky notes for specific comments, or highlights to flag a passage.
• Add as many as the review needs.
• Export the commented file to share back.

Keeping Reviews Efficient

Attach the comment directly to the relevant line rather than writing a general note at the top of the page — the whole point is that the reader shouldn't have to guess what a comment refers to.

Conclusion

A comment attached to the page it's about gets acted on faster than one buried in an email. FlexFiles keeps that connection intact, digitally, for free.