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.

Edit PDF metadata online for free. Change title, author, subject, and keywords. Update PDF properties instantly.

Drop PDF file here or click to browse

.pdf, application/pdf • Max 50MB

1

Select the PDF whose metadata you want to edit

2

Review existing document properties and fields

3

Modify title, author, keywords, dates, and custom properties

4

Download the PDF with updated metadata

No, only the metadata properties are modified. Document content remains unchanged.

Yes, you can clear any metadata field or leave it blank.

Yes, PDF metadata is accessible through document properties in most PDF readers.

No, the PDF must be unlocked first using our PDF Password Remover tool.