Numerous properties of pictures can be changed directly via the buttons of the contextual ribbon tab Picture.
The contextual ribbon tab "Picture", left section
The contextual ribbon tab "Picture", right section
This ribbon tab appears automatically when you select a picture. It contains the following buttons (from left to right):
▪New object: This option allows you to insert a new object into the document and different object types are available.
▪Cropping: You can enable/disable crop mode via this button. In this mode, the mouse cursor appears with an additional crop icon. Drag the borders of the picture with the mouse to crop the picture accordingly. To exit the mode, click on the button again. You can also use the button's small arrow to select a cropping from different shapes or to remove the cropping.
| See also the next section ("Picture tab" in the dialog box). |
▪Brightness, Contrast, Saturation: Drag the slider or click on 
and 
to change the respective values for the picture. For more information, see also the next section ("Picture tab").
▪Recolor picture: This option provides a list of predefined variations of the picture – for example, other color modes (grayscale, black/white, etc.) and variations where the image was colored. For more information, see also the next section ("Picture tab").
▪Compress pictures: Reduce the memory size of images in your document. For more information, see also Compressing pictures.
▪Change source: Replace the picture with another one (formatting is retained).
This corresponds to the File button in the dialog box. For more information, see next section ("Picture tab").
▪Reset: Reset the image-specific changes made to the picture, such as brightness, shading, rotate object, etc., to their default values. The non-image-specific settings are not reset, for example, line thickness and photo frames.
▪Photo frame: This option allows you to apply a photo frame effect to a picture.
▪AutoShape effects: This option is available as a ribbon command only for picture frames. For more information, see Picture frames.
| Note: You can still apply shape effects via the dialog box (double-click on the picture), even for embedded pictures without picture frames. The relevant options can be found on the Shadow, 3D and Effects tabs. For more information, see Changing picture properties via the dialog box. |
▪Fill color: This option is available as a ribbon command only for picture frames. However, you will find the options in the dialog box on the Fill tab.
▪Line color, Line thickness: These options are available as a ribbon command only for picture frames. However, you will find the options in the dialog box on the Lines tab.
▪Wrapping mode: This option is available only for picture frames. For more information, see Picture frames.
▪Bring to front, Send to back: These options are available only for picture frames. For more information, see Picture frames.
▪Rotate object: This option allows you to rotate a picture in 90° increments or flip it vertically/horizontally. For more information, see Rotating and flipping objects.
▪Align objects: This option is available only for picture frames. For more information, see Picture frames.
▪Group: This option is available only for picture frames. For more information, see Picture frames.
▪Duplicate: This option allows you to create an immediate copy of the selected picture.
▪Convert: This option converts a picture that is embedded in the body text into a picture frame and vice versa.
▪Width, Height: These options change the size of the picture. For more information, see Changing position and size of pictures.
Many (but not all) of these functions and some additional options can be found in the Object properties dialog box. You open the dialog box by double-clicking on the picture. For more information, see the next section.