# How to limit number of characters using actions **URL:** \ **Category:** Support\ **Created:** [February 7, 2019, 12:57am UTC](https://community.mp3tag.de/t/how-to-limit-number-of-characters-using-actions/44449 "2019-02-07T00:57:52Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![henriquebs12](https://community.mp3tag.de/user_avatar/community.mp3tag.de/henriquebs12/32/8205_2.png) [@henriquebs12](https://community.mp3tag.de/u/henriquebs12)\ **Post date:** [February 7, 2019, 12:57am UTC](https://community.mp3tag.de/t/how-to-limit-number-of-characters-using-actions/44449/1 "2019-02-07T00:57:52Z")
I'm using an action to convert the file name to the format $num(%track%,2) %title%, like **01 Example.mp3**. But I also wanted to limit the max amount of charterers in it, because iTunes limit to 64 characters for compatibility purpose. How can I do that? Thanks. ---
**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\ **Post date:** [February 7, 2019, 6:08am UTC](https://community.mp3tag.de/t/how-to-limit-number-of-characters-using-actions/44449/2 "2019-02-07T06:08:44Z")
use `$left($num(%track%,2) %title%,64)` ---
**Author:** ![Florian](https://community.mp3tag.de/user_avatar/community.mp3tag.de/florian/32/5759_2.png) [@Florian](https://community.mp3tag.de/u/Florian)\ **Post date:** [March 11, 2019, 3:37pm UTC](https://community.mp3tag.de/t/how-to-limit-number-of-characters-using-actions/44449/3 "2019-03-11T15:37:53Z")
7 posts were split to a new topic: [Shorten filenames for burning software](https://community.mp3tag.de/t/shorten-filenames-for-burning-software/44821) ---
**Author:** ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)\ **Post date:** [February 9, 2026, 12:27pm UTC](https://community.mp3tag.de/t/how-to-limit-number-of-characters-using-actions/44449/4 "2026-02-09T12:27:54Z")