Change the font size in a PDF
Change the font size of existing text in a PDF, free and in your browser. Select a line and step the size up or down: single lines resize in place, and whole paragraphs re-wrap at the new size with the original font kept. Your file never leaves your device. No watermark, no sign-up.
- Runs in your browser: files are never uploaded
- No watermark, no sign-up
- Free to use
Drag & drop your PDF here
Private: processed in your browser
or
Loading your PDFs…
How it works
- 1
Add your file
Drop your file into the tool. It stays in your browser, never uploaded.
- 2
Run Change PDF Font Size
Click the button and it processes instantly on your device.
- 3
Download or share
Download the result, or turn it into a shareable link and QR code.