Fix Adobe Acrobat Reader Displaying Vertical Text in PDF Forms on Android
Question details
Users experience a rendering bug where text typed into PDF form fields is displayed vertically, one character per line, instead of horizontally.

- Product
- Adobe Acrobat Reader
- Device & OS
- Android
- Scenario
- Filling out interactive PDF forms on an Android tablet or smartphone.
- Observed behavior
- Text entered into the form field stacks vertically downwards, showing one character per line, making the entered data illegible and incorrectly formatted.
Ensure you save any existing filled data in your PDF document to your local storage to prevent data loss before modifying, updating, or reinstalling your PDF reader application.
Update Adobe Acrobat Reader to the Latest Version
Updating the app can resolve known compatibility bugs introduced in previous versions that cause the one-character-per-line rendering issue.
Navigate to your home screen or app drawer and launch the Google Play Store on your Android tablet or smartphone.
Tap the search bar at the top, type 'Adobe Acrobat Reader', and select the official app from the search results.
If an 'Update' button is available, tap it to download and install the newest version. Once installed, open your PDF to verify if the text field issue is resolved.

Revert to an Earlier Version of Adobe Acrobat Reader
If the issue started immediately after a recent app update, rolling back to a previous stable version can fix the vertical text bug.
Fill PDF Forms Smoothly with WPS Office on Android
Avoid vertical text bugs and formatting glitches by using WPS Office. It provides a highly stable, feature-rich PDF reader that lets you fill, edit, and sign PDF forms effortlessly on your Android device.
- 1. Download WPS Office: Install WPS Office from the Google Play Store and open the application on your Android device.
- 2. Open your PDF Form: Tap the 'Open' button on the main screen and navigate to the folder where your PDF form is stored to launch it.
- 3. Enter your information: Tap on any interactive form field within the document. The keyboard will appear, allowing you to type your text naturally without formatting errors.
- 4. Save your document: Once the form is filled, tap the 'Save' icon in the top menu to preserve your data securely in the standard PDF format.

Frequently Asked Questions
Why does text in my Android PDF form appear one character per line?
This formatting issue typically occurs due to a known rendering bug in specific updates of Adobe Acrobat Reader on Android devices, which forces horizontal form fields to display text vertically.
Will I lose my filled PDF data if I uninstall the app to fix the bug?
If your filled PDF is not saved to your local device storage or synced to a cloud service, you will likely lose your unsaved inputs. Always save a local copy of your file before reinstalling or updating the PDF reader.
Are there other Android apps that can fill PDF forms correctly?
Yes, alternative applications like WPS Office provide excellent PDF reading and editing capabilities, allowing you to fill interactive forms smoothly without experiencing the vertical text formatting bug.




