Sign naturally
Draw or type signatures, save them for reuse, then position and resize them precisely.
Private PDF tools for Android
Finish the PDF.
Finish the PDF.
Keep it yours.
Sign, annotate and export PDFs without creating an account. Your document content is processed on your device—not uploaded to us.
No accountWorks offlineOn-device documents
Ready to shareSaved securely on your device
From unopened PDF to finished document
01Open
Choose any PDF from your device.
02Edit
Sign, type, draw or highlight.
03Finish
Save, protect, export or share.
Built for the last mile
Everything the document still needs.
Skip the heavy office suite. Signly keeps the tools you need close, clear and ready for the moment a PDF needs to be finished.
Annotate clearly
Add text, dates, freehand drawing and highlights—with undo and redo when you need them.
Control pages
Rotate, reorder or remove pages without leaving your document.
Protect exports
Open protected files and add password protection to the copies you export.
Recover drafts
Continue where you stopped with persistent drafts and a tidy recent-document library.
Save your way
Keep a copy, replace the original, export to a folder or share through another app.
Zoom in on details
Move around the page and zoom in to place each mark where it belongs.
Choose your colors
Pick ink and highlight colors that make notes easy to find at a glance.
Privacy by design
Your documents are not our business.
PDF contents, signatures and annotations are processed locally. Signly does not send your documents to its servers.
Read the plain-language privacy policyDocument processingOn your device
Account requiredNever
Document uploadsNone
Crash diagnostics and advertising services may use limited technical data. They do not receive your PDF contents.
Questions, answered
Good to know.
Does Signly require an internet connection?
Core PDF signing, annotation and export features work offline. Ads, consent messages and crash diagnostics may use a connection when available.
Are my PDF files uploaded?
No. Your document content stays on your device and is not sent to Signly, Firebase Crashlytics or Google AdMob.
Is this a certificate-based digital signature?
No. Signly adds visual handwritten or typed signatures. It does not currently create certificate-based cryptographic signatures.
Available now
GET IT ONGoogle Play