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Annotate PDF for students

Updated July 2026

Arthize lets students annotate a PDF in a private workspace — free, with no watermark. Annotating a PDF adds highlights, comments, shapes and notes on top of the page, so you can mark up a document without changing its text.

Why students annotate a PDF

The night before a deadline, a student merges lecture slides with their notes, compresses a scanned reading under the portal's 10MB limit, and annotates the key pages for revision — free, with no watermark on the result.

Built for lecture slides. Whether it's lecture slides, readings, assignments, Arthize's annotate pdf keeps the work inside your private workspace. Students often work on shared or library computers; a tool that processes files privately and deletes them keeps coursework and ID scans out of strangers' hands.

What matters when you annotate a PDF

Annotations sit on top of the page and don't change the underlying text.

You can highlight, comment, draw and add notes.

Annotated files are ideal for review and feedback.

How to annotate a PDF

  1. 1

    Open the editor

    Sign in and open the PDF editor.

  2. 2

    Add your PDF

    Upload the document to mark up.

  3. 3

    Add annotations

    Highlight text, add comments, draw shapes or leave notes.

  4. 4

    Download

    Save the annotated PDF.

Common questions

How do students annotate a PDF for free?
Annotating a PDF adds highlights, comments, shapes and notes on top of the page, so you can mark up a document without changing its text. On Arthize it's free with no watermark, and the file is deleted after the job — which is why students can use it for lecture slides without a confidentiality risk.
Is it private to annotate a PDF sensitive lecture slides?
Yes. Students often work on shared or library computers; a tool that processes files privately and deletes them keeps coursework and ID scans out of strangers' hands. Files are processed inside your private Arthize workspace and deleted after the job.
How do I annotate a PDF?
Annotating a PDF adds highlights, comments, shapes and notes on top of the page, so you can mark up a document without changing its text. On Arthize it's free with no watermark and processed privately.
Can I highlight and comment on a PDF?
Annotating a PDF adds highlights, comments, shapes and notes on top of the page, so you can mark up a document without changing its text. On Arthize it's free with no watermark and processed privately.

Related

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