How to Keep Custom Fonts When Converting Word to PDF
Question details
The user needs to prevent custom typography from being substituted with default standard fonts during PDF export, which causes document formatting and images to misalign.

- Product
- Word Processor / PDF Converter
- Device & OS
- not provided
- Scenario
- Converting a stylized text document with specific typography (e.g., Optima, Forum, Josefin Sans) into a PDF file for sharing or printing.
- Observed behavior
- Custom fonts are replaced with default standard fonts during the conversion process, leading to mismatched formatting, altered text flow, and misaligned images.
Ensure you have the rights and licenses to embed the custom fonts you are using, as some font files restrict embedding for distribution.
Embed Fonts in the Source Document Before Conversion
The most reliable way to maintain typography in a PDF is to embed the custom fonts directly into your original Word document before exporting it.
By embedding fonts, you attach the font data to the document itself. This guarantees that any PDF converter reading the document will have access to the exact character designs needed to render the file accurately.
Open your source document in your word processor. Navigate to the 'File' menu in the top-left corner and click on 'Options' at the bottom of the menu.
In the Options dialog box, select the 'Save' tab from the left-hand sidebar.
Scroll down to the 'Preserve fidelity when sharing this document' section. Check the box labeled 'Embed fonts in the file'. For best compatibility, uncheck 'Do not embed common system fonts'.
Click 'OK' to apply the changes. Save your document, and then proceed to export or 'Save As' PDF.
Use a Desktop PDF Converter Instead of Online Tools
Online converters often lack the server-side font libraries needed to process rare custom fonts. Using a local desktop application ensures the conversion uses your computer's installed fonts.
Convert Documents to PDF Without Losing Custom Fonts
WPS Office provides a robust, built-in PDF converter that perfectly preserves your document's original formatting, custom fonts, and high-resolution images locally without needing an internet connection.
- 1. Open the File in WPS Office: Launch WPS Writer and open your document containing the custom fonts.
- 2. Access PDF Export: Click on the 'Menu' button in the top-left corner, go to 'Export to PDF', or use the dedicated 'Export to PDF' button on the toolbar.
- 3. Adjust Export Settings: In the pop-up dialog, ensure 'High Quality' or 'Standard' is selected to maintain crisp images and precise text rendering.
- 4. Export and Save: Click 'Export to PDF' and choose your destination folder. Your newly created PDF will retain all original custom fonts.

Frequently Asked Questions
Why do my custom fonts disappear when converting to PDF online?
Online PDF converters rely on the fonts installed on their own servers to render documents. If they do not have your specific custom font (like Forum or Optima), they will automatically substitute it with a standard system font like Arial or Times New Roman, which alters your layout.
Can I embed any custom font into my PDF?
Not all fonts can be embedded. Font creators set specific embedding permissions (such as Installable, Editable, Print and Preview, or Restricted) within the font file. If a font is restricted by its copyright license, the software will block it from being embedded into the final PDF.
How do I check if my fonts are successfully embedded in the PDF?
Open your generated PDF in a PDF reader, go to 'File' > 'Properties' (or Document Properties), and select the 'Fonts' tab. It should list your custom fonts and display '(Embedded)' or '(Embedded Subset)' next to their names.
Why does my document formatting and images shift after PDF conversion?
When custom fonts are replaced with default standard fonts, the new fonts often have different character widths and spacing. This changes the text flow, potentially pushing words onto new lines or pages, which ultimately misaligns your images and breaks the document layout.




