Set document watermark style options. Tencent Documents sets the watermark font size by setting the document watermark style option. The operation to set the watermark font size in Tencent Documents is:

1. First open Tencent Documents and click the document operation icon.

2. Secondly, after clicking, select the permission setting option and click the advanced permission option.

3. Finally, select the option to set document watermark. Click the document watermark style option and select intensive (small watermark font) or loose (large watermark font). Once the settings are completed, save it.