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Font replacement
FontSwap — Replace PDF Fonts Online Free
Upload a PDF, see its fonts, pick replacements, and download the result. Free, no login required.
Swap fonts in the PDF directly — no reflow, no re-typesetting. Every line break and page break stays exactly where it is.
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Drop your PDF here or browse
PDF files up to 10 MB · Preview your first 3 pages free
Your file is processed securely and deleted after conversion.
How It Works
Pick Replacements
Choose from Google Fonts or upload your own. Map one font or many.
See the Result
Preview your first 3 pages — instantly. No reflow: line breaks, page breaks, and spacing stay fixed.
Powered by PDFDancer — the engine that replaces fonts without triggering reflow. Used by publishers to migrate entire backlists.