Changing application settings

To access the PDF Editor advanced settings:

1. Tap the Tools icon in the right corner of the top toolbar.
2. Tap the arrow next to the Application Settings menu item.

Currently, the following advanced settings are available:

1. Unit of Measurement allows you to specify what units are used on the rulers and in properties windows for measuring elements parameters such as width, height, spacing, margins etc. You can select the Centimeter or Point option.
2. Turn the spell checking on or off using the Spelling switcher.

   To adjust spell checking by choosing a document language:

   1. Tap the Tools icon in the right corner of the top toolbar.
   2. Tap the arrow next to the Document Language menu item.
   3. Choose the required language.
3. The AI Assistant switcher is enabled by default. It allows you to use an AI model of your choosing. To learn more about connecting AI models, please refer to the iOS: Enabling AI in ONLYOFFICE Documents article.
4. The Preferred Language menu item allows you to set the default language for spellchecking.