To increase that value first locate and open
/etc/onlyoffice/documentserver/default.json config, then find
"inputLimits" section and change the value for presentation extensions in
Here value is defined in megabytes.
Then restart Document Server services with:
supervisorctl restart all for Docker installation;
In case you are running Document Server in Docker container please locate and change the config inside the container.
systemctl restart ds-* for DEB/RPM packages installation from version 7.3.
In addition, you can increase the general file size that Document Server can handle:
This value is defined in bytes.
After that re-upload your presentation to the storage (I’d recommend also changing a name of the file slightly) and try to open it again.