PDF Sign: Sign & Scan PDFs

Sign a PDF in seconds on your phone, for free, with no ads, no account and no watermark. Save your handwritten signature once, then just tap it, pick a document and it's placed on the page. Move it, resize it, save. Done.

SIGN IN SECONDS
• Save several handwritten signatures, each with its own name, e.g. "Payment signature" or "Signature of Anna"
• Tap a saved signature, choose a PDF and the signature is placed for you
• Move and resize it with your fingers, then save

SCAN AND SIGN PAPER DOCUMENTS
• Turn paper documents into a PDF with your camera
• Automatic edge detection and perspective correction
• Color, grayscale or black & white
• Sign the scan right away

ANNOTATE
• Add text with size, bold, alignment and color
• Freehand drawing, highlighter and eraser
• Insert images
• Undo and redo

A REAL PDF
• Your edits are embedded in a real PDF, keeping the original quality
• Save over the original or as a copy
• Share it in one tap

A COMPLETE PDF READER
• Vertical or horizontal scrolling, or page by page
• Zoom, text search, table of contents and page thumbnails
• Fullscreen and dark mode
• Favorites and recent documents; it remembers the last page you read
• Password-protected PDFs
• Large files with hundreds of pages and 100 MB+

OPEN FROM YOUR APPS
Open PDFs straight from Gmail, WhatsApp, Telegram, Drive or Files with "Open with".

NO ADS, NO WATERMARK
• No ads, no pop-ups, no interruptions
• No watermark on your signed PDFs
• No subscriptions and no in-app purchases

PRIVATE BY DESIGN
PDF Sign is 100% free, with no ads, no account, no tracking and no analytics. It works offline. Your documents, signatures and history never leave your device.

Please note: PDF Sign adds visual, handwritten signatures. It does not create certified or cryptographic digital signatures.