It can be either one, text or graphic. Typically called a 'watermark' it can be used to mark documents with various items such as 'Draft' or 'Original' for tracking purposes. Most word processors allow it.
3-D effect
The ghosted graphic displayed on top of or behind text in a document is commonly referred to as a "watermark." Watermarks are often used to indicate the status of the document, such as "Draft" or "Confidential," or to enhance branding by including logos or images. They are typically semi-transparent, allowing the text to remain readable while still being visible.
Strikethrough
yes it can
Yes, they are mostly transparent and behind the content of document.
This is false. Word does not color the circular area behind any text or graphic when you shade text. The mini toolbar has commands related to changing the appearance of the text in your document.
A jpeg is a graphic, so it cannot be converted to a Word format. Even if it is a jpeg of some text, it is still a graphic, so that text will not be converted into text in a Word document. You can either insert the whole jpeg into the Word document or, if there is text you want in it, print the jpeg and use a scanner to scan the text into a text format.
On top part of pages is the document header, that can contain text or image. If it is behind the main content, like in center of page, it can be either of two. 1. A watermark- It is something that conveys a special message about document like 'confidential' , 'do not copy', company name etc. 2. A background picture. It stays in the background while you can write regular text over it.
jpeg files can't be converted to *.doc files, microsoft word is a word processing tool, not an image editor, but you can insert the image via the insert menu, and centering it and/or if it has a high resolution making it as big as the page itself.
No
That is called a "Water Mark." There is an option to add these on Microsoft Word.
To remove part of a graphic and reveal text or colors behind it, you can use a technique called masking or layer transparency in graphic design software. By applying a mask to the graphic layer, you can selectively hide portions of it, allowing the underlying content to show through. Alternatively, adjusting the opacity of the graphic can also create a see-through effect, making it possible to view elements behind it.