Be clear about what this is. It is a visual signature — the way most everyday paperwork gets signed — not a cryptographic certificate. If the document has form fields, fill them first and flatten so the answers cannot be changed. If you need proof the file has not been altered since you signed, use Certify, which adds a real digital signature with a key that lives in your browser. If several people must sign, Request signatures seals the document on your device and lets each party sign on theirs. All of it runs locally: your signature exists only in your browser and in the PDF you download.
How it works
- Drop the PDF and open Sign
- Draw or type your signature and click where it belongs on the page
- Download the signed PDF — nothing was printed, scanned or uploaded
Questions people ask
Is a drawn signature legally valid?
For most everyday agreements a visible signature placed on the document is what the parties expect, and it is how a great deal of paperwork is signed today. It is not a cryptographic digital signature; where a regulated workflow requires one, use Certify or a qualified provider.
Can I sign on my phone with my finger?
Yes. The pad supports touch drawing, placement works with a tap, and Bindery runs in the phone’s browser without an app. On Android you can share a PDF from any app straight into Bindery once it is installed; on iPhone, open the file from Safari or the Files picker.
Where is my signature stored?
In your browser and in the file you download — nowhere else. The signature library lives in your browser’s local storage so you can reuse it; with a Pro account it can sync as an image, never together with any document. Bindery never sees the PDF you sign.