Fill and sign documents

Last updated on Jun 9, 2026

Learn how to fill forms and add your signature using Acrobat on mobile.

Acrobat on mobile gives you tools to enter text, select radio buttons, create signatures or initials, and place form fields. You can complete and sign forms without an internet connection. Data is saved locally and synced to your account when you're back online.

Signatures and initials are permanent once saved. The PDF flattens on save and cannot be edited or unsigned afterward. Review carefully before saving.

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