What does "buffer" (in settings) mean

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1

What happens when I clear buffer.
Before doing that marginnote document and data size was 108GB (in ipad storage) and after that only 10 GB. Does this cause any data loss. Thanks.

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Hello

Clearing the cache will not cause data loss, this process will clear some redundant data such as the text layer content recognized by OCR Pro.

Kind Regards,
MarginNote-Edward
Support Team