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Online PDF editor: add text, cover and highlight

Open a PDF, click where you want to write and add text, cover a detail with a rectangle or highlight a paragraph. It is ideal for filling in a form, fixing a detail or marking up a document without paid software. Everything happens in your browser: the file is not uploaded to any server.

Processed 100% in your browser

Ctrl + Enter runCtrl + C copy result

How to use

  1. 1Drag the PDF in or click to select it.
  2. 2Choose “Text” and click on the page to type (Enter confirms), or “Cover”/“Highlight” and drag a rectangle.
  3. 3Use “Move” to reposition an annotation, “Delete” to remove it or “Undo” to step back; switch pages with the arrows.
  4. 4Click “Save edited PDF” to download the result.

Use cases

  • Fill in a PDF form that has no editable fields.
  • Correct a detail (a date, an amount) by covering it and typing the new value on top.
  • Highlight the key points of a contract or notes before sharing them.
  • Add a note, a text stamp or a reference to a document.

Frequently asked questions

Is my PDF uploaded to a server?

No. It is edited in your browser with pdf.js and pdf-lib, so private documents never leave your device.

Is “Cover” suitable for hiding confidential information?

No. The white rectangle is drawn on top, but the original text remains inside the file and can be copied or recovered. To truly hide data you must remove the content with a redaction tool.

Which fonts can I use?

Helvetica, which covers Latin letters with accents. Characters that do not exist in that font (for example non-Latin alphabets) are not written.

Can I change the text the PDF already contains?

No. This tool adds layers on top (text, boxes, highlights); it does not rewrite the document’s original content.

Does it work with password-protected PDFs?

Not with password-protected ones. Remove the protection first in your PDF reader.

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