PDF Editing Issues

How to Use a Decimal Point Instead of a Comma in PDF Forms

Amos GikundaAmos Gikunda Oct 28, 2026 868 views

Question details

The user needs to configure a PDF form field so that it accepts numbers using a decimal point (period) rather than a comma.

How to Use a Decimal Point Instead of a Comma in PDF Forms
Product
PDF Forms
Device & OS
not provided
Scenario
Setting up or filling out a PDF form that requires numerical data entry with specific decimal formatting.
Observed behavior
Depending on the field's number-format settings or the operating system's regional settings, the form defaults to using a comma as the decimal separator.
Before you start

Check your computer's system-wide regional and language settings, as PDF software often inherits default number formatting preferences directly from the operating system.

Solution 1Recommended

Modify the Number Format Settings in PDF Field Properties

Change the specific properties of the text field within your PDF editor to enforce a period as the decimal separator.

PDF forms allow creators to dictate how numbers are formatted within specific text fields. By editing the field properties, you can explicitly define the separator style regardless of the user's default locale.

1
Open form editing mode

Launch your PDF editor (such as Acrobat or WPS PDF) and open the document in 'Prepare Form' or 'Form Edit' mode.

2
Access field properties

Right-click the specific text field you want to modify and select 'Properties' from the context menu.

3
Navigate to the Format tab

In the Properties dialog box, click on the 'Format' tab located at the top.

4
Select the Number category

Choose 'Number' from the 'Select format category' drop-down menu.

5
Set the separator style

Look for the 'Separator Style' option and choose the format that uses a period for the decimal point (for example, '1,234.56'). Click 'Close' to save the changes.

Custom Formatting: If the built-in number formats do not meet your exact needs, you can use the 'Custom' format category to write a simple JavaScript keystroke script to enforce period usage.
Easy PDF Form Editing

Create and Edit Interactive PDF Forms with WPS Office

WPS Office features a powerful built-in PDF editor that makes it incredibly easy to design fillable forms, customize text field properties, and manage number formatting rules.

  1. 1. Open your document: Launch WPS Office and open your PDF file using the WPS PDF tool.
  2. 2. Go to the Form tab: Click on the 'Form' tab in the top navigation ribbon to access all interactive form creation tools.
  3. 3. Edit field properties: Double-click any existing text field, or insert a new one, to open the 'Text Field Properties' dialog box.
  4. 4. Customize formatting: Switch to the 'Format' tab to specify your preferred number style and enforce a period as the decimal separator.
Easily create interactive text fields, drop-down menus, and checkboxesCustomize number formats, date styles, and decimal separatorsFully compatible with standard Adobe Acrobat PDF formsLightweight software with an intuitive, user-friendly interface
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Frequently Asked Questions

Why does my PDF form automatically change my decimal point to a comma?

This generally happens because the PDF software reads your computer's regional settings. If your system is set to a locale that traditionally uses a comma as the decimal separator (like many European regions), the PDF form will automatically format numbers to match.

Can I force a specific decimal separator regardless of the respondent's computer settings?

Yes. As the form creator, you can go into the text field properties, select the 'Format' tab, choose the 'Number' category, and explicitly set the Separator Style to one that uses a period. This overrides the respondent's local system settings.

Do these number formatting rules apply when the PDF is printed?

Field formatting rules dictate how the data is handled and displayed digitally. Once the form is filled out and printed (or flattened), the text is permanently set exactly as it appeared on the screen at the time of printing.