Highlight PDF Text Like a Real Marker

Yellow marker ink doesn't travel through email. When you're reviewing a lease, syllabus, or research PDF on screen, you still want that "this line matters" signal.

Highlight marker draws translucent boxes over areas you drag — like a real highlighter, not the text-selection highlight in a word processor. Pair it with Add text for margin notes. When something needs to disappear entirely, that's Redact PDF.

Who uses this?

Remote co-signers marking up a contract. Students flagging readings before a seminar. Compliance teams tagging clauses for legal review. Anyone comparing two policy versions side by side.

It's faster than describing "the paragraph under the second bullet on page 4" in a separate email. The mark is right there on the line.

Marking up a file

Open Highlight marker, load the PDF, and drag rectangles over the lines you want to emphasize. A simple colour code helps — dates in yellow, obligations in green, whatever your team agrees on.

On colour scans, pale yellow can vanish. Switch to a stronger tint or outline critical lines with Draw.

Download and send. Recipients see the marks baked into the page, and they'll print too. Marks are applied locally, which matters for privileged review documents.

Highlight or redact?

Emphasize but keep readable → Highlight. Permanently remove sensitive text → Redact. Short comment beside a line → Add text.

FAQ

Is this the same as selecting text and highlighting it?

It's visual overlay boxes — reliable across viewers, including scanned pages where there's no real text layer.

Can I remove highlights later?

Re-edit from the original if the tool session allows. Otherwise keep a clean master copy.

Does it work on a phone?

Desktop browsers give more precise rectangles. Phones work for quick marks.

Will highlights show up when someone prints?

Yes — they're part of the rendered page.