Edit a PDF

Type on a PDF, fill in a form that has no fields, add a logo or photo, point things out with arrows and boxes, highlight a line or cover a mistake with whiteout.

Uploaded to servers0 B
Processed locally0 B
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Line width
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Whiteout only covers things up: text underneath stays in the file and can still be copied. Don't use it to hide passwords, account numbers or other secrets.

Why your files stay on your device

Nothing is uploaded

Most online PDF sites send your file to their servers. PDFMoss does the work inside your browser, so there is nothing to intercept, store or leak.

No limits on uses

There are no daily caps because there are no servers doing the work. Use any tool as often as you like.

Works on your phone

Every tool works on iPhone and Android: pick photos from your gallery and sign with your finger.

Original quality, works offline

Pages and images keep their quality, and once you install the app the tools work without an internet connection.

How to edit a PDF

  1. Drop a PDF on the page or click to choose it.
  2. Pick a tool, such as Text, Image, Highlight or Rectangle, and click or drag on the page.
  3. Move and resize anything you added, then click Save PDF and download the file.

Frequently asked questions

Can I change the text that's already in the PDF?

Not directly. You can cover it with Whiteout and type the new text on top, which looks the same when printed or viewed. The original text is still in the file underneath.

Is the text I add searchable?

Yes, for English and other Western European languages such as Spanish, French and German: it is saved as real text you can select and search. Other scripts and accented letters the standard PDF fonts don't include (for example Chinese, Japanese, Arabic, Russian, or Polish ł and Turkish ş) are saved as a sharp image of the text, so they still show correctly everywhere.

Can I fill in a form with this?

Yes. Choose Text, click on each blank and type. It works on scanned forms too, since you are typing on top of the page.

Are my files uploaded to a server?

No. PDFMoss processes files inside your browser. The counter at the top of the page shows 0 B uploaded because nothing is sent.

Is PDFMoss free?

Yes. Every tool is free to use with no sign-up and no watermark on your files.