Nothing leaves the phone — the signature exists only in your browser and in the file you save, and Bindery never has the document. If the PDF has fields, Fill forms completes them as a checklist first and Flatten locks the answers; if someone else must sign, Request signatures seals the document on your phone and lets them sign on theirs through a link, with an audit page and a trusted timestamp on completion. It is a visual signature — the everyday kind — not a cryptographic one; Certify adds that on a laptop or the phone. Add Bindery to the home screen to keep it a tap away.
How it works
- Open Bindery in Safari and choose the PDF from Files
- Draw with your finger or type your signature, then tap where it belongs
- Save the signed PDF to Files or share it
Questions people ask
Is drawing with a finger good enough?
Yes — the pad captures touch at the screen’s resolution and trims the ink, so a finger signature looks like the one on paper. If you would rather not draw on a small screen, type your name and pick a style; either way the signature is kept in your browser’s library for reuse.
How do I get the signed file back to the sender?
Save it to Files or share it straight from Safari’s share sheet to Mail, Messages, WhatsApp or any app. The signed PDF is an ordinary file written on the phone; nothing was uploaded to Bindery, so there is no link to fetch it from.
Is a finger-drawn signature legally valid?
For most everyday agreements a visible signature on the document is what the parties expect and accept. It carries no cryptographic proof; when tamper evidence or a certificate is required, use Certify, and for regulated workflows a qualified provider may be needed.