How to Preserve Custom Fonts in Editable PDF Forms
Question details
Users need to ensure that non-standard custom fonts remain intact and are not replaced by default system fonts when rich text formatting is enabled in an editable PDF form.

- Product
- PDF Editor / Adobe Reader
- Device & OS
- not provided
- Scenario
- Creating or filling out interactive PDF forms with rich text fields.
- Observed behavior
- When rich text formatting is enabled, custom fonts in PDF form fields are automatically substituted with default system fonts by the PDF reader.
Verify that the custom font you want to use has licensing permissions that allow it to be embedded into interactive digital documents.
Embed the Custom Font into the PDF Document
Embedding the font directly into the PDF ensures that the necessary font resources are available to the reader, preventing unwanted font substitution.
PDF readers often replace non-standard fonts in form fields if the font file is missing from the user's system. By embedding the font, you package the font data with the document itself.
Open your PDF document in a professional PDF editor and navigate to the Document Properties or Advanced Settings menu.
Locate the 'Fonts' or 'Embedding' section and select the option to embed all fonts or specifically select the custom font used in your form fields.
Save the changes to your PDF file. Open the saved file in a standard PDF reader (like Adobe Acrobat Reader) and type in the form field to verify the font is preserved.

Disable Rich Text Formatting in Form Fields
Turning off rich text formatting forces the form field to strictly adhere to the specific font assigned in its appearance settings.
Create and Manage PDF Forms with WPS Office
WPS Office offers a comprehensive set of PDF editing tools that allow you to seamlessly create interactive forms, customize text fields, and manage document fonts without hassle.
- 1. Open the PDF File: Launch WPS Office and open your interactive PDF document.
- 2. Access the Form Editor: Click on the 'Form' tab located in the top navigation ribbon to access form creation and editing tools.
- 3. Edit Field Properties: Double-click any text field to open its properties panel, where you can modify font settings, appearance, and text formatting options.
- 4. Save the Document: Click 'Save' or 'Export to PDF' to preserve your form settings and customized fonts.

Frequently Asked Questions
Why does my PDF form font change when someone else opens it?
This happens when the custom font used in the form isn't installed on the recipient's computer and hasn't been embedded into the PDF file. The PDF reader automatically substitutes it with a default system font.
Can I force a PDF form to use a specific font?
Yes. You can force a specific font by explicitly setting it in the form field's Appearance properties and ensuring the 'Allow Rich Text Formatting' option is disabled.
How do I know if my custom font allows embedding?
Font creators embed licensing flags within the font file. When you attempt to embed the font using a PDF editor, the software will usually display a warning or block the action if the font's license restricts embedding.




