Are NanoTools completely free to use?

Yes, all basic tools on NanoTools are completely free to use with no registration required. We offer premium features for power users.

Is my data secure when using NanoTools?

Your files are processed securely and are automatically deleted after processing. We do not store your files or data on our servers.

No installation required. All tools work directly in your browser on any device - computer, tablet, or smartphone.

We support a wide range of formats including PDF, JPG, PNG, WebP, GIF, JSON, XML, CSV, and many more depending on the tool.

Remove PDF annotations online for free. Delete comments, highlights, and markup. Clean PDF documents.

Drop PDF file here or click to browse

.pdf, application/pdf • Max 50MB

1

Select the annotated PDF you want to clean

2

Remove all annotations or select specific types to remove

3

Verify which annotation types will be removed

4

Save the PDF without annotations

Yes, choose selective mode to remove only comments, only highlights, or any specific annotation type.

No, only annotations and markup are removed. Original document text and images remain intact.

No, annotation removal is permanent. Keep a backup if you might need the annotations later.

Attachments can optionally be removed. Use caution as this may remove important embedded files.