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Highlight PDF

Mark the lines that matter with a see-through colour.

Select PDF

PDF

Files stay on your device.0 bytes uploaded

Highlight a PDF without Acrobat

Highlighting makes the lines that matter easy to find again — in a contract, a study handout or a report you’re reviewing. Drag a box over a line and it fills with a see-through colour, so the words still show. Switch between amber, blue, green and red to colour-code, add a note beside it with the Text tool, and save. It all happens in your browser.

  • Your files stay on your device

    Highlight PDF runs in your browser, so nothing is uploaded — not the file, not even its name.

  • Free, with no sign-up

    No account, no watermark on your files and no daily limit for normal use.

  • Files up to 100 MB

    Large or scanned files are fine — they simply take a little longer.

  • Works on every device

    Windows, Mac, Linux, iPhone, iPad and Android, in any modern browser. Nothing to install.

Highlight PDF, step by step

  1. 1

    Select your PDF — the highlighter is ready.

  2. 2

    Drag over each line you want to highlight.

  3. 3

    Press Save and download your PDF.

Good to know

No. Highlights are filled at about one-third strength, so the words underneath stay readable on screen and in print.

No — it’s a see-through shape drawn onto the page, so every PDF viewer and printer shows it the same way. It won’t appear in a comments list.

Each file can be up to 100 MB. Large or scanned files simply take a little longer.

Yes. It runs in any modern browser on Windows, Mac, Linux, iPhone, iPad and Android, with nothing to install. You can also add pdfconva to your home screen and open it like an app.

No. This tool runs entirely in your browser. Your files never leave your device.

Yes. Every pdfconva tool is free, with no sign-up and no watermark on your files.

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