Sign on Pdf

Sign on PDF is a fast, secure, and easy-to-use PDF signing app that lets you view PDF files, create digital signatures, sign PDF documents, and share signed PDFs directly from your Android device. No printing, no scanning, and no account required.

Whether you need to sign contracts, agreements, invoices, application forms, business documents, or personal files, Sign on PDF makes the process quick and completely offline. Your documents remain private because everything is processed on your device.

View PDF Documents

Open PDF files directly from your device using the Android Storage Access Framework without requesting unnecessary storage permissions.

Features include:

• Open any PDF document from your device
• Smooth page-by-page PDF viewing
• High-quality PDF rendering for clear text and images
• Pinch-to-zoom with horizontal panning
• Page indicators and total page count
• Recently opened PDF history for quick access
• Friendly handling of unsupported or password-protected PDFs

Create Your Digital Signature

Draw your signature naturally with your finger and save it for future use.

Features include:

• Draw signatures on a smooth canvas
• Black, blue, and red signature colors
• Adjustable pen thickness
• Undo and clear while drawing
• Automatically trimmed transparent signature images
• Save multiple reusable signatures
• View and delete saved signatures anytime

Sign PDF Anywhere

Place your signature exactly where it belongs on any page.

Features include:

• Tap anywhere to insert a signature
• Drag signatures to the perfect position
• Resize signatures using corner controls
• Add multiple signatures across multiple pages
• Edit or remove signatures whenever needed

Export and Share

Create a new signed PDF while keeping your original document untouched.

Features include:

• Export high-quality signed PDF files
• Automatically save with "_signed" filename
• Choose where to save the document
• Share signed PDFs instantly using any compatible app including email, messaging apps, and cloud storage
• Original PDF is never modified