Signing a PDF on Android can mean two different things: placing your own signature on a document, or running a full e-signature workflow where multiple people receive, approve and track a file.
We prioritized established apps with a clear Android workflow, official distribution and practical value beyond simply opening a PDF. Pricing and premium limits can change, so verify the current Play listing before installing.
Quick picks
| App | Best for | Why it stands out |
|---|---|---|
| Adobe Acrobat Reader | Signing and filling ordinary PDFs | Familiar PDF interface with Fill & Sign workflows |
| DocuSign | Business e-signature workflows | Designed for sending, tracking and completing signature requests |
| Xodo PDF Reader & Editor | Signing inside a general PDF editor | Combines signature tools with everyday PDF markup |
| Foxit PDF Editor | Business users working across devices | Editing and signature tools in one PDF ecosystem |
| signNow | Teams with repeat signature requests | Focused on sending and managing e-signature workflows |
1. Adobe Acrobat Reader
Best for: Signing and filling ordinary PDFs.
Acrobat is strong when you already have the PDF and simply need to fill fields, add a signature and send the finished document.
Watch for: Advanced document workflows may require Adobe account or paid features.
2. DocuSign
Best for: Business e-signature workflows.
DocuSign is more appropriate when several people must sign, when audit trails matter or when a company already uses its e-signature platform.
Watch for: It can be excessive for a single personal form.
3. Xodo PDF Reader & Editor
Best for: Signing inside a general PDF editor.
Xodo works well when signing is only one part of reviewing, highlighting or organizing a document.
Watch for: Check the current free versus premium split.
4. Foxit PDF Editor
Best for: Business users working across devices.
Foxit is a good choice for people who already work with the same PDFs on desktop and mobile.
Watch for: Some cloud and advanced features may require a subscription.
5. signNow
Best for: Teams with repeat signature requests.
signNow targets repeat business processes rather than only drawing a signature onto a local file.
Watch for: For occasional personal use, its workflow can be more than you need.
How to choose
For a one-time form, Acrobat or Xodo is usually enough. For tracked requests involving clients or coworkers, DocuSign or signNow makes more sense. Foxit fits users already inside its PDF ecosystem.
Privacy and permission check
Signed documents can be legally or financially sensitive. Verify where files are stored, whether completed documents are uploaded, and what audit data is retained before using a cloud e-signature service.
Related SSM Apps guides
Use our Android app safety checklist before trusting an unfamiliar document app with sensitive files.
Availability note
Features, prices and subscriptions can change by region. Use the official Play results linked above to confirm the current publisher and feature set.
Start the conversation
Corrections, useful experiences and focused questions are welcome. Keep discussion respectful and on topic.