Dropbox Sign system requirements overview

Updated Oct 06, 2025

Browsers

You can use Dropbox Sign with most modern browsers, however, it works best on the following:

The Dropbox mobile app is available for iPhone, iPad, and Android.

Dropbox Sign supports a wide range of file types:

If you’d like to use a file type that we don’t support, save the file as a .pdf before uploading.

Notes:

A single file can't exceed 40 MB.
A single request can't exceed 500 pages or 40 files.
When uploading multiple files, the total file size of the upload shouldn't exceed 40 MB.

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