PDF grayscale preview

Look at the pages in grayscale without changing the file.

Runs on your device Works offline after setup All PDF tools

Choose a PDFThe preview is grayscale. The file is not changed.

Limits

One PDF, up to 32 MiB and 1,000 pages, unless a tool says otherwise.
Desktop limits are provisional. Physical mobile and Safari verification remains open.
Nothing is exported. The original file stays in color.

What happens to your data

PDF grayscale preview runs inside this browser tab, and the page's code comes from this site. There is no application server to receive your data, and the site's security policy limits connections to this site.

How local processing works

Good to know

One PDF, up to 32 MiB and 1,000 pages, unless a tool says otherwise.
Desktop limits are provisional. Physical mobile and Safari verification remains open.
Nothing is exported. The original file stays in color.