Modules for Backdrop CMS

Deletes user sessions which have been idle longer than a configured time.

On busy sites, the sessions table can grow to be very large, and that can cause slow accesses to it, as well as slow writes due to locking, leading to performance bottlenecks.

Use Javascript (ajax) code to check periodically to see if a user is still logged in. If the user is NOT logged in, the current page is reloaded so that the user sees the page as an anonymous user.

Converts a HTML page to PDF using mPDF PHP Library.
It allows you to generate the following pdf documents of any node:

www.example.com/node/nid/pdf

Control the contents of your robots.txt file through Backdrop configuration.

Creates a virtual sitemap.txt file for indexing by search engines.

This module adds the select2 widget to all select elements in a webform.

Enforce restrictions on user passwords by defining a password policy that encourages the use of pass phrases.

Prevent user enumeration by blocking the display of all login error messages. A user attempting to login will not be aware if the account exists, an invalid user name or password has been submitted, or if the account is blocked.

You can use this module to make an element (such as the navigation menu or
the header region) become sticky at the top of the page when a long page
is scrolled.

This is a simple module that provides settings to limit the number of values to
display on fields with multiple values. (For example, in an image field
with multiple images, you may only wish to display one in the teaser view).