Android Apps to Sign PDF files

DottedSign is a comprehensive online e-signature solution designed to streamline document signing workflows. It empowers individuals and businesses to securely and legally sign documents electronically, eliminating the need for printing, scanning, and mailing.

Signority is a secure cloud-based platform for electronic signatures, offering comprehensive tools for managing document workflows, sending documents in bulk, and seamless integrations with popular services.

Adobe Acrobat Reader DC is the venerable and widely adopted standard for interacting with PDF documents. It provides robust tools for viewing, printing, signing, and commenting on PDF files across various devices and platforms.

Foxit Reader is a robust and feature-rich PDF reader and editor that provides users with a comprehensive set of tools for viewing, annotating, signing, and creating PDF documents. Known for its blend of performance and functionality, it caters to both casual users and professionals handling complex PDF workflows.