No matter what version of Word you own, "in-line" images shift their position as the text in the document changes. The "in-line" text wrapping style places an anchor point in the text and moves the image as necessary. By changing the wrapping style to a "floating" style such as "Square," "Top and Bottom," or "Behind," the image remains in place as the text moves around it. In Word 2010, these options are built-into the context menu when right-clicking any image but are also available in many other versions of Word.
Open your Word document.
Right-click the picture and click "Size and Position."
Click the "Text Wrapping" tab.
Click "Square," "Tight," or "Through" to wrap the text around the edges of the image. "Square" wraps text as if the image is a solid rectangle. "Tight" wraps the text around the image, ignoring transparencies adjacent to the left and right sides of the image. "Through" ignores all transparencies in the image, wrapping text into the middle of the object as well as the sides.
Click "Top and Bottom" to prevent text on either side of the image. Text automatically wraps from above the image to immediately below it.
Click "Behind" to place the image behind the text. Click "In Front Of" to place it in front of the image. "Behind" and "In Front Of" don't wrap text.
Different versions of Word use different menus. In Word 97 to 2003, right-click the image and select "Format Picture." Click the "Layout" tab and click "Advanced." In Word 2007, right-click the image, select "Text Wrapping" and click "Other layout options." The "Format Picture" dialogue box includes many options for customising your image's position and characteristics. The "Position" tab allows you to change the image's position behaviour including alignment, spacing and relative position compared to other document features such as columns.