Other PDF Issues

Fix Century Gothic Font Corruption When Reducing PDF File Size

Maira MehtabMaira Mehtab Oct 28, 2026 868 views

Question details

The Century Gothic font is replaced with a different font when compressing or reducing the size of a PDF document.

How to Fix Century Gothic Font Corruption When Reducing PDF File Size
Product
PDF Editors
Device & OS
not provided
Scenario
Optimizing or reducing the file size of a PDF document that contains text formatted in the Century Gothic font.
Observed behavior
The Century Gothic text becomes corrupted or substituted because the font is automatically unembedded during the PDF size reduction process.
Before you start

Ensure you have a backup copy of your original, uncompressed PDF file before applying any optimization workflows, so you do not permanently lose the original font data.

Solution 1Recommended

Use the Optimized PDF Workflow to Retain Embedded Fonts

Use the advanced PDF Optimizer tool instead of the standard 'Reduce File Size' option to explicitly prevent fonts from being unembedded during compression.

Standard file size reduction features often strip out font data to save space. By using advanced optimization workflows, you can specify exactly which fonts to keep embedded, ensuring that specialized fonts like Century Gothic display correctly on any device.

1
Open PDF Optimizer

Open your PDF file. Navigate to 'File', select 'Save as Other', and then choose 'Optimized PDF' to launch the PDF Optimizer dialog box.

2
Access the Fonts tab

In the left-hand panel of the PDF Optimizer window, click on the 'Fonts' category to view the font embedding options.

3
Prevent font unembedding

Check the box labeled 'Do not unembed any fonts'. Alternatively, find Century Gothic in the list of embedded fonts and ensure it is moved to the 'Retain' list.

4
Save the optimized PDF

Click 'OK' to apply the optimization settings. Save the new PDF document, and the file size will be reduced without corrupting the Century Gothic text.

Use the Optimized PDF Workflow to Retain Embedded Fonts
Best Practice: It is highly recommended to embed all fonts, preferably as subsets. Subsetting embeds only the specific characters used in the document, which preserves the text appearance and encoding while still keeping the file size small.
Smart PDF Compression Alternative

Compress PDFs Safely Without Losing Fonts in WPS Office

WPS Office provides a smart PDF compression tool that reduces file sizes effectively while preserving your document's layout, text appearance, and embedded fonts.

  1. 1. Open your PDF: Launch WPS Office and open the PDF document you need to compress.
  2. 2. Access the Compress tool: Navigate to the 'Tools' tab on the top ribbon and click on 'Compress'.
  3. 3. Select compression level: Choose your desired output quality (HD, Normal, or Common) based on how small you need the file to be.
  4. 4. Compress and save: Click the 'Compress' button. WPS PDF will optimize the file size automatically while retaining your original font formatting.
Safely reduce PDF file sizes without corrupting or losing custom embedded fonts like Century Gothic.Fully compatible with Microsoft Office formats (Word, Excel, PowerPoint), allowing seamless conversion to and from PDF.Lightweight, fast, and offers an intuitive interface for editing, annotating, and managing PDFs.
microsoft office alternative - wps office

Frequently Asked Questions

Why do fonts change when I reduce a PDF file size?

Standard file size reduction tools often unembed fonts to minimize the file's footprint. If the computer or device opening the compressed PDF doesn't have the original font installed, it will substitute it with a default system font, altering the document's appearance.

What does it mean to embed a font as a subset?

Subsetting a font means the PDF only saves the specific characters (letters, numbers, symbols) that are actually used in the document, rather than attaching the entire font file. This dramatically reduces the PDF file size while guaranteeing the text displays flawlessly.

Can I fix my PDF if the Century Gothic font is already corrupted?

Once a font is completely unembedded and the file is saved, the exact font data is lost from that specific file. You will need to reopen your original, uncompressed source document and compress it again using the correct 'Retain fonts' settings.