Subset FontsFree Account
Subset embedded fonts to reduce PDF file size. Free account required. Secure and fast.
Secure processing
Files deleted after 1 hour
How to Subset Fonts
1
Upload your PDF
2
Fonts are analyzed for unused glyphs
3
Click 'Subset Fonts'
4
Download the optimized PDF
Frequently Asked Questions
1What is font subsetting?
Subsetting keeps only the characters used in the document, removing unused glyphs to save space.
Why Use ZiaSign's Subset Fonts Tool?
ZiaSign's font subsetter removes unused character glyphs from embedded fonts, reducing PDF file size. If your PDF uses Arial but only 50 characters, the other 65,000+ glyphs are removed. Significant savings for font-heavy documents.
Remove unused font glyphs
Reduce file size significantly
Preserve all visible text
Free account required
Also known as: subset pdf fonts · reduce pdf font size · remove unused font glyphs · optimize pdf fonts
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