[Vocabulary] What does 'She's welcome' mean in this context?

[tulipflower]

Hi. would you please tell me what the phrase 'she's welcome ' mean in this context?

A: She is preparing a new presentation, and she wants to use these pictures.
B. She's welcome to use my scanner.
it's really great.

 

[SoothingDave]

It means she is being invited to use the scanner. The owner of the scanner has no problem with letting her use it.