Edit PDF text directly on the page
Fix a typo, update a date or change an amount without the original file. Click the text and type: the line keeps the PDF’s own font when it has those letters, and it all happens on your device.
Free forever · Runs on your device · 0 bytes uploaded
Speed depends on your device; big files on phones take longer. Slow or not working? Report it on GitHub
How to edit PDF
- Add one PDF file.
- Click any text to change it, or use Add text and White-out from the toolbar.
- Click “Save PDF” and download the edited file.
Also good for
- edit text in a PDF
- change words in a PDF free
- add text to a PDF
- edit PDF text in the same font
- PDF editor without sign-up
Private by design — and you can check
Your files are never uploaded, because there is nowhere to upload them to.
- No upload step existsFiles are read and written inside this browser tab. There is no server that could receive them.
- The browser enforces itThis page’s Content Security Policy only allows connections back to this site, which serves nothing but the app itself.
- See for yourselfOpen developer tools, watch the Network tab and run a job: no request carries your document.
- Open sourceEvery line is on GitHub, built on qpdf, pdf.js & pdf-lib.
Frequently asked questions
Are my files uploaded anywhere?
No. Fizzdoc does the work inside your browser tab, using open-source engines compiled to WebAssembly and JavaScript. Your file is read from your device, processed locally, and the result is saved straight back to your device. You can check this yourself: open your browser’s developer tools, go to the Network tab, and run a job — no request carries your file.
How do I edit text in a PDF without changing the font?
Click the line and type. In most PDFs, Fizzdoc rewrites the line inside the PDF with its own font, size and colour, as long as that font already has every letter you type. If one is missing, that line uses the closest standard font (sans-serif, serif or monospace) at the same size and position.
Is the original text removed?
When the line is rewritten in the PDF’s own font, yes: the old wording is replaced in the file. With a standard font, and with White-out, the original is only covered. For sensitive information, use Redact PDF.
Is Fizzdoc free?
Yes, and it stays free: no sign-up, no watermark, no daily limit and no premium tier. Fizzdoc is open source under the Apache-2.0 license, so anyone can run their own copy.
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