PDF forms and signatures for banking apps
Account opening, loan applications and mandates — filled in, signed and checked inside your own app, on a tablet in the branch or a customer’s phone.
From application to signed agreement, in your app.
Fill the application
The customer fills the bank’s own PDF form; you prefill what you already know.
doc.setFormValue("fullName", customer.name)FormsSign with your keys
A handwritten signature, or a digital signature made by your HSM or remote signing service.
signDocument(editor, pdf, id, { reason })SignaturesLock and counter-sign
Flatten the form so values can’t change; an officer counter-signs without breaking the first signature.
doc.flattenForm()FormsCheck before you file
Verify every signature: who signed, when, and whether anything changed afterwards.
verifySignatures(editor, bytes)Verify signatures
Code from the web API; the iOS and Android SDKs have the same document API.
Documents stay on the device
Customer documents are opened, signed and saved on the device — they never pass through a document server, and the branch keeps working when the network drops.
- No document server, and nothing uploaded to us.
- Works without a connection.
- Signing keys stay in the device’s keystore or your own signer.
Where the SDK stops
So you can plan for it before you build.
- Scanned paper forms are images: PDF-SDK does not run OCR, so their text can’t be edited or searched.
- A digital ID created on the device is self-signed. For signatures backed by a certificate authority, plug in your own signer.
- Routing a document to the next signer, reminders and archiving are your app’s job — the SDK edits and signs the file you give it.
Banking and finance questions.
Ask about your projectYes. The private key never enters the library: you supply a signer, the SDK hands it a SHA-256 digest and writes the signature it returns into the PDF.
No. Documents are opened, filled, signed and saved on the device. An online license check sends only the license key, the app’s identity and the SDK version.
Compliance belongs to your app and your processes, not to a component. PDF-SDK helps by keeping documents on the device and the signing keys under your control — it never receives document content.
More industries
Try it in your app.
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Talk to us
Questions about licensing, several apps, volume, or OEM and site terms — we will work out what fits.