How Mobile Users Can Fill Out and Sign Adobe PDF Forms
Question details
Organizations and users need to know if electronic signature workflows and fillable PDF forms created in Acrobat desktop can be completed by users exclusively on mobile devices.

- Product
- Adobe PDF Forms
- Device & OS
- not provided
- Scenario
- Distributing fillable forms and electronic signature workflows to mobile-only users.
- Observed behavior
- Mobile users need a reliable method to successfully complete and electronically sign interactive PDF forms created by desktop applications.
Ensure that the PDF form does not have restrictive security settings that prevent form filling or signing, and verify that you have a compatible PDF reader app installed on your mobile device.
Use the Adobe Acrobat Reader Mobile App
The most direct way for mobile users to fill out and sign PDFs created in Adobe Acrobat.
The free Adobe Acrobat Reader mobile app allows users to fill out and sign supported PDF forms seamlessly. Mobile users can generally complete forms created by Acrobat desktop users, provided the files and signature workflow are compatible with the app.
Download and install the Adobe Acrobat Reader app from your device's App Store or Google Play Store.
Launch the app and open the fillable PDF form you received.
Tap on the highlighted fillable fields to trigger your device's keyboard and type in your information.
Tap the 'Fill & Sign' icon (usually represented by a pen), select 'Sign', and create or place your electronic signature on the document.

Use the Adobe Fill & Sign App
A dedicated mobile application specifically designed for quickly filling and signing forms, even if they aren't fully interactive.
Fill and Sign PDFs on Mobile Easily with WPS Office
WPS Office offers a comprehensive, mobile-friendly PDF editor that allows you to effortlessly fill out interactive PDF forms and securely sign documents directly from your smartphone or tablet.
- 1. Install WPS Office: Download the free WPS Office app from the App Store or Google Play Store.
- 2. Open the PDF Form: Locate and open the PDF form you need to fill out within the WPS app.
- 3. Input Information: Tap on the interactive form fields to quickly input your text, select dropdowns, or check boxes.
- 4. Sign the PDF: Tap on 'Tools' at the bottom, navigate to the 'PDF Edit' or 'Annotation' tab, and select 'PDF Signature' to draw or insert your signature.
- 5. Save and Share: Tap 'Done' to apply the signature, then save and share the completed PDF document directly from your mobile device.

Frequently Asked Questions
Can I fill out a PDF on my phone without downloading an app?
Some built-in mobile web browsers or file previewers can display PDFs, but for full interactivity and legally binding signature placement, using a dedicated app like WPS Office or Adobe Acrobat Reader is highly recommended.
Why can't I edit or fill out my PDF form on mobile?
The PDF might have restricted permissions set by the creator, or it might be a 'flat' scanned image rather than an interactive form. You can use text insertion tools in apps like WPS Office to manually fill out non-interactive forms.
Are electronic signatures added on mobile legally binding?
Yes. In most jurisdictions, electronic signatures placed via trusted mobile apps are considered legally binding for standard business, legal, and personal documents.
Do I need a paid subscription to sign PDFs on my phone?
No, basic form filling and electronic signature capabilities are available for free in comprehensive mobile office apps like WPS Office.




