Mark Up a PDF Without Printing It: Comments, Highlights and Arrows

Someone shares a document and asks for your feedback. The old reflex is to print it, scribble in the margins, and scan it back. There is a far faster way that keeps your notes legible and your feedback easy to act on.

Annotating means marking up, not editing

You do not need to change the document's text to give feedback — you need to point at things. Highlights flag the important lines. Comment notes explain what should change. Arrows and boxes draw attention to a specific spot. All of it sits on top of the PDF without altering the original.

The free workflow

1. Open the PDF in the browser. Upload it to FileTools — no account, no software install.

2. Highlight and comment. Mark the passages that matter and drop notes explaining your feedback.

3. Export and send back a single annotated PDF the other person can open anywhere.

Why this beats print-and-scan

Handwritten margin notes are often unreadable and always slower. Typed comments are clear, searchable, and land as a clean document rather than a crooked phone photo of a printout. And because FileTools works in the browser, a confidential contract or draft is not uploaded to someone's servers.

If the PDF is locked

Some PDFs are restricted so you cannot mark them up. Unlock it first with FileTools, then annotate as normal.

Reviewing a document should take minutes, not a trip to the printer. Highlight, comment, send — and your feedback arrives clear and easy to act on.