PDF Editing Issues

Fix Currency Fields Not Accepting Decimal Commas in PDF on Android

Natalie Taylor Oct 18, 2026 868 views

Question details

The user cannot enter a comma for decimal values in a pre-formatted PDF currency field because the comma key is disabled on the mobile keyboard.

How to Fix Currency Fields Not Accepting Decimal Commas in PDF on Android

Product: Adobe Acrobat Pro 2017 / Adobe App
Device & OS: Android 11
Scenario: Filling out a pre-formatted PDF form containing currency fields (e.g., 1234.56 €) on a mobile device.
Observed behavior: The comma key is grayed out or disabled on the Android keyboard while editing the currency field, preventing the entry of decimal values formatted with a comma.

Before you start

Ensure your Android keyboard is fully updated, and check if switching to a different default keyboard app (such as Gboard or SwiftKey) enables the missing punctuation keys.

Solution 1Recommended

Use a Decimal Point Instead of a Comma

Bypass the disabled comma key by using the standard period or decimal point for numeric entries.

In many Android PDF applications, the numeric keypad triggered by a pre-formatted number field enforces standard US-style formatting. You can easily bypass this by substituting the comma with a period.

Select the Currency Field

Tap the specific currency field in your PDF form to trigger the on-screen numeric keyboard.

Locate the Decimal Point

Look for the standard period or decimal point (.) key on your active number pad.

Enter the Value

Type your desired currency amount using the point instead of the comma (for example, enter '1234.56' instead of '1234,56'). The app will process the input correctly.

Automatic Formatting: Once you finish typing and tap outside the field, the PDF form should automatically apply the correct currency format and symbol based on the file's embedded properties.

Solution 2

Adjust Form Field Properties on Desktop

Modify the PDF form properties on your computer to allow standard text input instead of strict numeric input.

Efficient PDF Editor

Fill and Edit PDF Forms Seamlessly with WPS Office

Avoid keyboard limitations and strict formatting errors when filling out PDF forms on your mobile device. WPS Office provides full support for interactive PDF forms, ensuring numeric and currency fields function smoothly on Android.

1. Install WPS Office: Download and install the free WPS Office app from the Google Play Store on your Android device.
2. Open Your PDF Form: Launch WPS Office and navigate to your downloaded PDF file containing the currency fields.
3. Enable Form Filling: Tap on the document to open it. If prompted, select 'Form Filling' mode from the top or bottom toolbar.
4. Enter Your Data: Tap directly on the currency field. The WPS smart keyboard will appear, allowing you to freely input your desired decimal separators.
5. Save or Share: Once the form is completed, tap the 'Save' icon or share the finalized PDF directly via email or messaging apps.

Flawless compatibility with standard PDF form fields and Adobe Acrobat formats.Smart keyboard adaptation for easy numeric, date, and text entry on Android devices.Lightweight app that combines PDF editing, Word, Excel, and PowerPoint.Free and easy to use across multiple platforms including Android, iOS, Windows, and Mac.

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Frequently Asked Questions

Why is the comma disabled on my Android keyboard when filling a PDF?

When a PDF field is formatted specifically as a 'Number' or 'Currency', the viewing app instructs Android to open a strict numeric keypad. Depending on your Android version and regional settings, this keypad may lock out the comma key to enforce a standard decimal point (.) format.

Does this issue affect all Android devices?

Not always. It depends heavily on the combination of your Android OS version, the default keyboard app you are using (such as Gboard or Samsung Keyboard), and your device's language and region settings.

How can I type the Euro symbol (€) in the PDF field on mobile?

If the field was correctly formatted as a currency field when the PDF was created, you only need to type the numerical value. The app will automatically append the Euro symbol (€) as soon as you tap outside of the text box.

Can I fix this by changing my device language?

Sometimes. Switching your Android keyboard language to a European layout (like German or French) where commas are the standard decimal separator might force the keyboard to make the comma key available.

PDF Troubleshooting