# How can I limit the size of files uploaded by my users?

Use the `max_size` parameter to set a maximum size that an upload can have in bytes, such as
`1048576` (1 MB). Specify this to prevent users from uploading excessively large files. This can be
set as part of the Assembly request or as part of the <dfn>Template</dfn>.

Keep in mind that this is not an individual file size limit, but a total size limit. So if you
specified a limit of 10MB and your user uploads 3 files with 5 MB each, the request would still get
blocked! As soon as the upload starts, and if it exceeds the maximum size, the entire upload is
canceled — even if it contains files that do not exceed the `max_size` limitation.

If you want to just ignore the files that exceed a certain size, but process all others, then please
use our [file filtering capabilities](/docs/robots/file-filter.md).