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.
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
1
Upload Your PDF
We detect every font in your document automatically.
2
Pick Replacements
Choose from Google Fonts or upload your own. Map one font or many.
3
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.