How to Fix Pasted Text Appearing Too Large in PDF Form Fields
Question details
The user needs to prevent pasted text from appearing abnormally large in PDF form fields compared to normally typed text.

- Product
- PDF Editor
- Device & OS
- not provided
- Scenario
- Pasting formatted content from external sources like Microsoft Word into a fillable PDF form field.
- Observed behavior
- Pasted content appears excessively large in the form field, overriding the standard font size, while manually typed text displays at the correct size.
Ensure you have editing permissions for the PDF document and access to a PDF editor that allows you to modify form field properties.
Disable Rich Text Formatting in Form Field Properties
Turning off rich text formatting ensures that any pasted text strips its original styling and adopts the default font and size settings of the PDF form field.
When 'Allow Rich Text Formatting' is enabled, the PDF form field tries to retain the original formatting, such as font size and weight, of the pasted content. Disabling this feature forces the text to match the intended form design.
Enter form editing mode in your PDF editor, right-click the problematic text field, and select 'Properties' from the context menu.
In the Properties dialog box, click on the 'Options' tab to view the specific text input settings for that field.
Locate and uncheck the 'Allow Rich Text Formatting' box. If necessary, ensure 'Multiline' is checked to allow longer text to wrap properly.
Switch to the 'Appearance' tab and set the Font Size to a specific number (e.g., 12) or select 'Auto' so it adjusts automatically to the box size. Close the properties window and save the document.

Create and Edit PDF Forms with WPS Office
WPS Office includes a powerful PDF editor that allows you to easily create, modify, and fill out interactive PDF forms without formatting issues. Adjust field properties, manage text sizes, and ensure your documents look professional.
- 1. Open the PDF in WPS Office: Launch WPS Office and open your PDF document using the WPS PDF tool.
- 2. Access Form Editing Tools: Navigate to the 'Form' tab on the top ribbon to access the interactive form creation and editing features.
- 3. Modify Field Properties: Double-click any text field to open its properties panel, where you can adjust appearance, set font sizes to Auto, and manage formatting rules.

Frequently Asked Questions
Why does text copied from a website change font size when pasted into a PDF?
When rich text formatting is enabled in a PDF form field, it attempts to retain the HTML or source formatting of the copied text. Disabling rich text forces the pasted text to discard external styling and use the field's default appearance.
What does the 'Auto' font size setting do in a PDF form field?
The 'Auto' font size setting automatically scales the text up or down to fit within the visible boundaries of the text box. If a user types or pastes a large amount of text, the font shrinks so that all content remains visible.
Can I apply this rich text fix to multiple PDF form fields at once?
Yes. In form editing mode, you can hold down the Ctrl key (or Command on Mac) to click and select multiple text fields. Right-click any of the selected fields to open Properties, and disable 'Allow Rich Text Formatting' to apply the change to all of them simultaneously.




