# Are unused resources deleted automatically?

**URL:** <https://discourse.joplinapp.org/t/are-unused-resources-deleted-automatically/10883>\
**Category:** Support\
**Created:** [6 September 2020 08:46 UTC](https://discourse.joplinapp.org/t/are-unused-resources-deleted-automatically/10883 "2020-09-06T08:46:35Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![lemonade](https://avatars.discourse-cdn.com/v4/letter/l/ac8455/32.png) [@lemonade](https://discourse.joplinapp.org/u/lemonade)\
**Post date:** [6 September 2020 08:46 UTC](https://discourse.joplinapp.org/t/are-unused-resources-deleted-automatically/10883/1 "2020-09-06T08:46:35Z")

</div>

Hello,

I wonder whether Joplin delete unused resources? If it does, _how_ does it know/decide if a resource is used by some note(s)?

To be concrete, suppose I have notes A and B, and A contains an attachment C. Is it safe to refer to attachment C in note B by copy-and-pasting the markdown link to C into B? If I do so and delete note A afterwards, will Joplin delete the resource B, too, making the reference in B obsolete?

Thank you.