Can I add my digital signature to contracts?

Yes. You can draw your signature using a mouse, touchpad, or touchscreen stylus and place it anywhere on the document.

Are my signatures stored on a server?

No. All drawing data and signatures stay exclusively in your local session and are cleared when you close the tab.

Yes. The exported PDF is standard PDF format compatible with Adobe Acrobat, Apple Preview, Chrome, and all mobile PDF viewers.

Add notes and highlights. This tool is currently under development.

Step-by-Step Guide

Review assignments, sign agreements, and annotate study notes with full stylus and touch support.

01Step 1
Open PDF Document
Load your document into the canvas annotator without uploading to any remote server.
02Step 2
Add Annotations and Signatures
Use the pen, highlighter, text box, and signature tools to mark up pages.
03Step 3
Export Flattened PDF
Save the annotated document with permanently embedded vector annotations.

Air-Gapped Privacy

Your files are processed directly inside your browser RAM. No servers ever see your confidential data.

Multi-threaded Web Workers execute instantly without waiting in remote server queues.

No hidden subscriptions, watermark restrictions, or mandatory accounts. Works even without Wi-Fi.