it supports multiple pages;

it doesn't support RTL;

it supports signature;

it supports Elementor Templates but doesn't support background, font, and style.

Name of the PDF file, whatever stands before the .pdf suffix. Generally, for File System limitations, it is better to give simple names, that are not too long or contain special characters.
IMPORTANT: the name must be unique, otherwise previous PDFs will be overwritten. You can also use Tokens to generate it;

Folder is where the PDF will be stored. By default, it is under the elementor folder in wp-content/uploads;

Template, choose an Elementor Template. You can use dynamic data from form submission using the [form] Token.
IMPORTANT: PDF has several limitations, so please limit advanced style and don't use Javascript.

Page Size, default is A4, but you can choose from all supported sizes (like A3, letter, etc);

Page Orientation, choose landscape or portrait render;

Page Margin, you can easily fill the whole page margin to 0 or define your frame size;

DPI, you can choose the DPI of your PDF,

Save, and activate it to save the rendered PDF as media, which you can find in the Media Library;

Title, the Media Title, you can also use Tokens to generate it dynamically;

Description, the Media Description, you can also use shortcodes and Token to generate it dynamically