How to Change the Decimal Separator for Number Fields in PDF Forms
Question details
The user needs to change the decimal separator in a PDF form number field from a comma to a period so they can enter values using their preferred format.

- Product
- Adobe Acrobat / PDF Forms
- Device & OS
- not provided
- Scenario
- Filling out or designing an interactive PDF form with specific numeric formatting requirements.
- Observed behavior
- The number field currently forces a comma as the decimal separator, preventing the user from entering decimal values with a period.
Ensure you have editing permissions for the PDF form. If the form is secured or restricted, you will need the owner's password to access and modify the field properties.
Change the Separator Format in Field Properties
Modify the format settings of the specific number field to update the decimal separator to a period.
PDF editors manage number formatting at the field level. By accessing the interactive field's properties, you can explicitly define how thousands and decimals are separated.
Open your PDF document in your PDF editor (such as Adobe Acrobat) and select the 'Prepare Form' tool or enter the form editing mode.
Right-click the specific number field you want to modify and select 'Properties' from the context menu.
In the Properties dialog box, click on the 'Format' tab to view the available formatting options for that specific field.
Ensure the format category is set to 'Number'. Choose your desired decimal places, and then select the appropriate decimal and thousands separators from the dropdown options (e.g., period for decimal). Close the dialog to save your changes.

Easily Edit and Fill PDF Forms with WPS Office
WPS Office includes a comprehensive PDF editor that allows you to seamlessly fill out interactive forms, edit text, manage pages, and convert documents without worrying about restrictive formatting issues.
- 1. Download and Install: Download WPS Office for free and open your PDF document using the built-in WPS PDF tool.
- 2. Access Form Tools: Navigate to the 'Form' tab on the top ribbon to view all interactive form editing options.
- 3. Edit Form Fields: Double-click any number or text field to modify its properties, formatting, and appearance.
- 4. Save and Export: Once formatting adjustments are made, save your PDF directly or export it to other formats seamlessly.

Frequently Asked Questions
Why are my decimal separator options limited in the properties menu?
Separator options in PDF editors are often tied to your computer's operating system regional settings or the installation language of the software. Changing your system locale to a region that uses a period for decimals may unlock the option.
Can I change the decimal separator for all number fields at once?
Yes, you can select multiple fields simultaneously. Hold the Ctrl (or Cmd on Mac) key, click all the desired number fields, right-click to open Properties, and apply the number format in the Format tab to update them all at once.
Does changing the decimal separator alter the calculated values in my form?
No, changing the visual decimal separator format only changes how the number is displayed to the user. The underlying mathematical calculations will still compute accurately based on the entered values.
What if the 'Format' tab is missing from the field properties?
The 'Format' tab generally only appears for Text fields or Combo Box fields. If you are using a different type of form element, or if the PDF was created using an older static standard, these formatting options might not be available.




