PDF Electronic Signature

✍️ PDF Electronic Signature / Hand-drawn Sign

Add electronic signatures to your PDF files online. Supports hand-drawn signatures, uploading signature images, with free drag, resize, and positioning. Signatures saved locally for reuse. 100% local processing protects your file privacy.

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Click or drag a PDF file here

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FAQ

How It Works

This PDF e-signature tool is built on the OpenDataLoader open-source local PDF parsing engine.

1. Local PDF Parsing: Reads all pages, renders page layers, stores document data in browser local memory.

2. Signature Asset Generation:

- Handwritten Signature: Built-in canvas captures mouse/touch trajectories, generates transparent-background signature layer, cached locally.

- Image Seal: Upload image, auto-remove white background to generate transparent seal layer, cached locally.

3. Seal Overlay Processing: Freely drag, resize, rotate signature/seal layers onto any page position; layer data stays in browser memory.

4. Local PDF Export: Reassembles new PDF locally preserving all page content with overlaid signature layers. One-click download.