Natural signatures
Draw or type signatures, save them for reuse, then move and resize them precisely.
PDF tools that stay with youSign it.
Sign it.
Keep it private.
Add signatures, text, dates, drawings and highlights to your PDFs—without creating an account or uploading your documents.
Works offlineEdit wherever you are
No accountOpen the app and begin
On-device filesYour PDFs are not uploaded
Everything needed to finish the document.
From the first mark to the final export, Signly keeps the workflow focused, fast and entirely on your Android device.
Useful annotations
Add text, dates, freehand drawing and highlights with undo and redo built in.
Page control
Rotate, reorder or delete pages without leaving the document.
Protected PDFs
Open password-protected files and secure exported copies with a password.
Draft recovery
Continue where you left off with persistent drafts and a clear recent-document library.
Flexible export
Save a copy, replace the original, export or share when the document is ready.
Privacy by design
Your documents are not our business.
PDF processing happens on your device. Signly uses Firebase Crashlytics for technical crash diagnostics, but does not upload the contents of your documents.
See exactly what is collectedGood to know.
Does Signly require an internet connection?
No. Core PDF signing, annotation and export features work offline. Crash diagnostics may be sent when a connection is available.
Are my PDF files uploaded?
No. Your document content stays on your device and is not sent to Signly or Firebase Crashlytics.
Is this a certificate-based digital signature?
No. Signly currently adds visual handwritten or typed signatures. It does not create certificate-based cryptographic signatures.