PDF Suite by Function Labs

Edit and annotate a PDF online

Add text overlays, drawings and signatures without a library detour. The editor adds annotations; it does not rewrite the original embedded text or automatically reflow the layout.

Editing uses the one-time premium trial when available; otherwise a day pass or Pro is required. Free uploads up to 25MB; paid uploads up to 50MB.

Drop a PDF here

or click to browse · PDF up to 25MB

No account needed to start. Save to a library only by choice.

How it works

  1. Step 1

    Choose your PDF.

  2. Step 2

    Select a text, drawing or signature tool and place your additions.

  3. Step 3

    Save and download the annotated PDF.

Common questions

Can I replace existing PDF text?

This editor adds content on top of the document. For rewriting text, try PDF to Word and review the converted layout.

Are my changes saved automatically?

No. Download the finished result before closing the tab. You can explicitly save a copy to your library when signed in.

Finish today's PDF jobs without another subscription.

Three free everyday tasks per 24 hours. Need the full suite? The £2.49 day pass includes 24 hours of premium access without a recurring payment.

Compare the day pass and Pro