Sign PDF: Fill & Scan Docs

Sign any document in seconds. Create your e signature, sign PDF files, fill out forms, scan paper documents with your camera and merge, split or compress PDFs — right from your phone, fully offline. No printer. No scanner. No account.

Most signing apps make you register, upload your documents to their servers and pay a yearly subscription. This one does not. Your files stay on your device. Open the app and sign.

SIGN PDF
Draw your signature with your finger or a stylus. Save signatures and initials once and reuse them. Place signature, initials, date, name and free text anywhere on the page. Sign multi-page PDF contracts, agreements and forms.

FILL PDF FORMS
Open a form, tap a field and type. Text, dates, names, checkmarks. Fill in applications, contracts and registration forms on your phone instead of printing them. Zoom in for precise placement. What you see in the editor is exactly what the finished PDF looks like — no surprises after export.

SCAN TO PDF
Scan paper documents with your camera. Automatic edge detection, and crooked pages are straightened without changing the content. Multi-page scans go into a single PDF.

MERGE PDF & COMBINE PDF
Join several PDFs into one file. No watermark on your document.

SPLIT PDF & EXTRACT PAGES
Split a PDF into separate files or pull out just the pages you need.

JPG TO PDF & IMAGE TO PDF
Turn photos into a clean PDF — JPG, JPEG, PNG and more. Photo to PDF with proper page margins in millimetres.

PDF TO IMAGE
Export PDF pages as JPG or PNG at the resolution you choose.

COMPRESS PDF & REDUCE FILE SIZE
Shrink PDFs for email and upload limits. Choose the level of compression yourself.

PASSWORD PROTECT PDF
Lock a PDF with a password and control permissions — allow or block printing, copying and editing.

LET SOMEONE ELSE SIGN ON YOUR PHONE
Mark the signature fields, hand the phone over, and the app guides the other person field by field. No email, no link, no account for them either.

PRIVATE BY DESIGN
• Your documents never leave your device
• All signing, filling and PDF tools work fully offline, airplane mode included
• No account, no email address, no registration
• Documents are kept in the app's own private storage area
• Optional app lock with fingerprint or face unlock
• Optional: add the place and date of signing to the signature — the location is read on the device and never sent anywhere
• No ads
• Only anonymous usage statistics are collected, never document content

WHO IT IS FOR
Freelancers and small businesses signing quotes, invoices and contracts. Landlords and property managers with rental agreements. Tradespeople signing off jobs on site. Teachers, clubs and associations collecting consent forms. Anyone who needs to sign an NDA, a lease, a delivery note or a school form without a printer.

WORKS IN 11 LANGUAGES
English, German, Spanish, French, Portuguese, Russian, Turkish, Arabic, Hindi, Chinese and Japanese — switchable inside the app, independent of your phone language.

QUESTIONS OR IDEAS?
Write to contact@tby-group.com. Real replies from a small team