What do some ps words "from so-and-so" and "to so-and-so" mean respectively?

By XXX means that the author of this picture is XXX, which is the creator of this picture.

To so-and-so means that the recipient of this picture is so-and-so, which means who this picture is for.

By as a preposition means: near; Beside; Often placed after passive verbs, indicating the actor; expression

By as an adverb means: after; Used to indicate reservation or preservation; flying visit

To as a preposition means: to, to, to, to (a certain direction or place); Be in the direction of. Get to (a place).

To as an adverb means: close; Close; Turn it off.

In real life, we will see many photos, pictures, articles and advertisements with "by" written at the bottom or somewhere. This is a way to avoid being stolen by others and protect our intellectual property rights. This is also a good way to prevent our works from being stolen by others or used for other purposes.

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Adobe Photoshop, referred to as "PS", is an image processing software developed and released by Adobe Systems.

Photoshop mainly deals with digital images composed of pixels. With its numerous editing and drawing tools, you can edit pictures effectively. Ps has many functions, including pictures, graphics, text, video, publishing and so on. Photoshop has been divided into two versions for the first time since CS5, namely, the normal standard version and the extended version supporting 3D functions.