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Mark student work in PDF

Mark work handed in as PDF just like on paper: write with a stylus on a tablet, highlight, tick, add a mark. The files stay on your device, which protects students' privacy.

🔒 Your PDF never leaves your computer. Free, no sign-up, no limits, no watermark.

How do I mark a PDF assignment?

  1. Open the assignment above: the Draw tool is already selected for freehand writing (stylus, finger or mouse).
  2. Annotate:
    • Draw for handwritten comments and crossings-out, in red, blue, green or black; the eraser removes a whole stroke;
    • Highlight to mark a passage;
    • Text for a typed comment, easier to read than finger writing;
    • Shapes to circle or point.
  3. Tick and mark with Stamps: ✓, ✗, “Seen”, the date and a mark out of 20 (editable).
  4. Download the marked work and return it through your usual platform or email.

Save time

  • Keyboard shortcuts switch tools instantly (D draw, H highlight, T text, K stamps, V select); they are shown in the tooltips.
  • Ctrl+Z undoes the last stroke.
  • For several students' work in a single PDF, use page organising or the “Split” tab to separate them after marking.

Frequently asked questions

Can I mark with a stylus on an iPad or Android tablet?

Yes: the Draw tool supports stylus and finger input, with smoothed strokes. On a computer, a mouse or graphics tablet also works.

Is students' work uploaded to a server?

No. The browser does everything: no file and no student name leaves your device, which helps with data-protection rules.

Will students see my annotations on their computer or phone?

Yes: annotations are merged into the pages and show in every PDF viewer, with no special software.