✦ eIDAS · ESIGN · UETA compliant

Sign any PDF
in seconds

Draw, type or upload your signature — right in your browser. Your PDF is never uploaded to a server. Includes SHA-256 audit trail. Free, no sign-up, no installation.

Start signing free → See how it works
🔒 256-bit encryption
✅ No installation
🚫 Files never uploaded
🇧🇪 Made in Belgium
✏️ Draw signature
Aa Text signature
🖼 Image upload
📅 Date stamp
📍 City stamp
🤳 Take Photo
✍ Signed · SignFlow
Features

Everything you need
to sign documents

From simple signatures to full multi-party signing workflows — SignFlow has you covered.

✏️
Multiple signature types
Draw with mouse or finger, type your name in cursive, upload a signature image, or take a photo with your phone.
📤
Request signatures
Send a link to anyone. They open it, add their signature, and download the fully signed document. No account needed for recipients.
🔐
SHA-256 audit trail
Every signed document includes a cryptographic hash, signer identity, and timestamp. eIDAS, ESIGN & UETA compliant.
🤳
Phone photo upload
Scan a QR code on your phone, take a photo (front and back), crop it, and it appears instantly on your PC document.
📅
Date & location stamps
Add date stamps in multiple formats and city/location text. Drag, resize and position anywhere on the document.
📄
Page management
Add blank pages, delete pages, or insert photos as new pages. Full PDF editing before you sign.
How it works

Sign in 4 simple steps

No software to install. Works entirely in your browser.

1
Upload your PDF
Drag and drop or click to upload any PDF document. Files are processed securely in your browser.
2
Add your signature
Draw, type, upload an image, or take a photo. Add dates, city stamps, and free text too.
3
Position & resize
Drag signatures anywhere on the document. Resize with the corner handle. Delete with ×.
4
Download or share
Download your signed PDF instantly, or send a signing link to others for multi-party signatures.
Legal compliance

Legally valid signatures

SignFlow signatures include a full audit trail and meet international electronic signature standards.

EU Regulation No 910/2014 on electronic identification. Valid across all EU member states including Belgium.
US Electronic Signatures in Global and National Commerce Act. Legally binding for US-based contracts.
Uniform Electronic Transactions Act. Adopted by 49 US states as the standard for electronic records.
🔐 What's included in every signed document:
SHA-256 document hash · Signer name & email · Timestamp (UTC) · SignFlow verification · Full audit trail page appended to document
FAQ

Common questions

Is SignFlow legally binding?
Yes. Every signed document includes a SHA-256 hash, signer identity, and timestamp — meeting eIDAS (EU), ESIGN and UETA (US) standards. For highly regulated contracts, consult a legal professional.
Do I need an account?
No — nobody does. Open the app, sign, download: no sign-up, no email, no login. The same goes for recipients of a signing link: they just open the URL, add their signature, and download. An account is only needed if you want to send someone a signature request, or post on the community board.
Is my document data secure?
Shared documents are encrypted with AES-256 before upload. The decryption key only exists in the link URL and never reaches our servers. Documents are automatically deleted after 14 days.
Is SignFlow really free?
Yes — completely free right now, with no download limits and no credit card. SignFlow is an experiment by LemonApple Labs; if paid plans ever return, the core signing tool will stay free.
Can I sign on mobile?
Yes, SignFlow works on any browser. You can draw your signature with your finger on a touchscreen, or use the QR code feature to take photos with your phone camera.
Does my PDF get uploaded to a server?
No. Signing happens entirely in your browser — the PDF is rendered and edited locally and never leaves your device. Only if you use a signature-request link is the document stored, and then it's AES-256 encrypted first and auto-deleted after 14 days.

Ready to sign?

Free to use — no credit card, no download limits.

Start signing free →