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Highlight PDF
EditDrag highlight boxes over any part of a PDF to mark important sections. Pick the colour and opacity — your highlights stay visible in every PDF reader.
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Drop a PDF to highlight
🔒 100% Private
Files never leave your browser. No upload to any server.
⚡ Instant
Processing runs locally on your device. No queues, no waiting.
🆓 Free Forever
No signup, no watermarks, no limits. Use as many times as you like.
Frequently asked questions
Are my highlights visible everywhere?
Yes — highlights are flattened into the PDF as semi-transparent overlays that show in every reader.
Can I remove a highlight?
Hover any highlight in the editor and click × to delete it before saving.
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