diff --git a/README.md b/README.md
index 3d45c5a..667d3c9 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,14 @@ To add custom themes, you will have to upload them to your instance dedicated fo
 - Make sure the file access rights are approriate (only akkoma user can access them) `sudo chown -R akkoma:akkoma /home/yunohost.app/akkoma/static/themes/` (= own by akkoma) and `sudo chmod 750 /home/yunohost.app/akkoma/static/themes/` (=only akkoma can read and edit the file).
 - Then edit `/home/yunohost.app/akkoma/static/styles.json` for instance with `sudo su akkoma nano /home/yunohost.app/akkoma/static/styles.json`.
 
+### Uploaded files size
+By default, the web server [NGINX is configured](https://github.com/YunoHost-Apps/akkoma_ynh/blob/testing/conf/nginx.conf#L12) with a maximum value for uploading files at 50 MB. You can change the value only in akkoma under this limit. To go higher, you also need to change NGINX value on `/etc/nginx/conf.d/my.domain.tld.d/akkoma.conf` : change `client_max_body_size 50M;` value in order to do so.
+
+Don't forget to reload NGINX `sudo service nginx reload` settings and possibly restart Akkoma `sudo service akkoma restart` for the changes to take effects.
+
+*NB: These settings are restored to the default configuration when updating Akkoma. Remember to restore your configuration after all updates. This should be improved in the future:tm:*
+
+
 ## Admin Tasks
 
 Connect with SSH to your Yunohost as YNH admin user. 
diff --git a/README_fr.md b/README_fr.md
index f8e36ba..5cc3031 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -58,6 +58,14 @@ To add custom themes, you will have to upload them to your instance dedicated fo
 - Make sure the file access rights are approriate (only akkoma user can access them) `sudo chown -R akkoma:akkoma /home/yunohost.app/akkoma/static/themes/` (= own by akkoma) and `sudo chmod 750 /home/yunohost.app/akkoma/static/themes/` (=only akkoma can read and edit the file).
 - Then edit `/home/yunohost.app/akkoma/static/styles.json` for instance with `sudo su akkoma nano /home/yunohost.app/akkoma/static/styles.json`.
 
+### Uploaded files size
+By default, the web server [NGINX is configured](https://github.com/YunoHost-Apps/akkoma_ynh/blob/testing/conf/nginx.conf#L12) with a maximum value for uploading files at 50 MB. You can change the value only in akkoma under this limit. To go higher, you also need to change NGINX value on `/etc/nginx/conf.d/my.domain.tld.d/akkoma.conf` : change `client_max_body_size 50M;` value in order to do so.
+
+Don't forget to reload NGINX `sudo service nginx reload` settings and possibly restart Akkoma `sudo service akkoma restart` for the changes to take effects.
+
+*NB: These settings are restored to the default configuration when updating Akkoma. Remember to restore your configuration after all updates. This should be improved in the future:tm:*
+
+
 ## Admin Tasks
 
 Connect with SSH to your Yunohost as YNH admin user. 
diff --git a/doc/DISCLAIMER.md b/doc/DISCLAIMER.md
index f0721f2..1c27414 100644
--- a/doc/DISCLAIMER.md
+++ b/doc/DISCLAIMER.md
@@ -27,6 +27,14 @@ To add custom themes, you will have to upload them to your instance dedicated fo
 - Make sure the file access rights are approriate (only akkoma user can access them) `sudo chown -R akkoma:akkoma /home/yunohost.app/akkoma/static/themes/` (= own by akkoma) and `sudo chmod 750 /home/yunohost.app/akkoma/static/themes/` (=only akkoma can read and edit the file).
 - Then edit `/home/yunohost.app/akkoma/static/styles.json` for instance with `sudo su akkoma nano /home/yunohost.app/akkoma/static/styles.json`.
 
+### Uploaded files size
+By default, the web server [NGINX is configured](https://github.com/YunoHost-Apps/akkoma_ynh/blob/testing/conf/nginx.conf#L12) with a maximum value for uploading files at 50 MB. You can change the value only in akkoma under this limit. To go higher, you also need to change NGINX value on `/etc/nginx/conf.d/my.domain.tld.d/akkoma.conf` : change `client_max_body_size 50M;` value in order to do so.
+
+Don't forget to reload NGINX `sudo service nginx reload` settings and possibly restart Akkoma `sudo service akkoma restart` for the changes to take effects.
+
+*NB: These settings are restored to the default configuration when updating Akkoma. Remember to restore your configuration after all updates. This should be improved in the future:tm:*
+
+
 ## Admin Tasks
 
 Connect with SSH to your Yunohost as YNH admin user.