How It Works

Annotate a PDF in three simple steps

Step 1

Upload Your PDF

Drag and drop your PDF into the upload area, or select “Choose file” to find it on your device. You can upload files up to 100 MB.

Step 2

Add Your Annotations

Place notes, highlights and comments where they are needed, then apply the annotations to your PDF.

Step 3

Download the Annotated PDF

When your annotations are ready, sign in to download your annotated PDF.

Benefits

Why Use PDFTool to Annotate a PDF?

Easy to use

Keep comments next to the relevant text or image. Highlight a passage or add a note so it is immediately clear which passage your feedback refers to.

Fast, straightforward processing

PDFTool processes your changes quickly, helping you annotate a PDF without a lengthy manual workflow.

Feedback Where It Belongs

Add notes and highlights alongside the content you want to discuss. Add clear feedback to a report, draft, or shared document while keeping the original page content in place.

Works in your browser

Use PDFTool to annotate a PDF in your browser on desktop, tablet or mobile without installing additional software.

Frequently Asked Questions

Annotate PDF

Add notes, highlights and comments to a PDF. Use notes, highlights and comments when studying, reviewing a contract or giving feedback on a draft.

Upload your PDF and use the on-screen controls for this task. Place notes, highlights and comments where they are needed, then apply the annotations to your PDF.

Because the tool works in your browser, you can use it on desktop, tablet or mobile without installing another application. PDFTool provides fast online processing for files up to 100 MB.

When processing is complete, sign in to download your annotated PDF. It is ready to open, share or use straight away.