No upload, 100% local, no account

PDF Editor

Add text, images, highlights and white-out boxes on top of your PDF and place them where you want. It overlays elements (it does not edit the existing text). Everything stays in your browser.

How PDF Editor works

PDF Editor lets you annotate any PDF with pdf-lib, add text boxes, drop in images, highlight passages with colour, and paint white-out boxes to cover content you want to hide. When you are done, download the result as a standard PDF you can share immediately.

The annotations are added as layers on top of the existing pages and burned into the output, so the source layout is preserved while your additions appear over it. White-out boxes make the covered area non-selectable in the downloaded file, though you should review the result before relying on it for sensitive redaction.

Frequently asked questions

Are my files uploaded to a server?

No. Every operation runs inside your browser tab using JavaScript and WebAssembly. Your file is read into memory on your own device, processed there, and the result is offered as a local download. Nothing is transmitted to Sunasty or any third party. You can verify it yourself: open your browser DevTools, go to the Network tab, and watch, no request carries your file.

What kinds of annotations can I add?

You can insert free-form text boxes (choose font size and colour), embed images, apply semi-transparent highlight rectangles and draw opaque white-out boxes to redact or cover existing content. The annotations are burned into the PDF output.

Does it edit the underlying text of the PDF, or only add layers on top?

It adds annotation layers on top of the existing pages. It does not reflow or alter the original text content, the source layout is preserved and your additions appear over it. If you need to extract the raw text, use the PDF to text tool instead.

Can I use it to redact sensitive information permanently?

White-out boxes cover content visually and are burned into the output, making the obscured area non-selectable in the downloaded PDF. For truly sensitive redaction, review the result carefully to confirm the underlying content is not accessible in the output file.

Does it work offline?

Yes, once the page has loaded. Because the processing happens on your device, you can disconnect from the network and the tool keeps working. This is the clearest proof that your data never leaves your machine.

Is it free? Do I need an account?

It is completely free and requires no sign-up. There are no watermarks, no daily limits and no tracking cookies needed to use the tool.