In the previous topic, we have introduced how to launch the preview dialog, and how to change resolution in DPI.
To adjust image size (i.e. image resolution), you can do any of the followings,
A) Change resolution by changing DPI value
B) Change image size by zoom level in percentage
C) Specify your desired dimension in pixel.
Dimension consists of height and width. You can fix height and alter width (Based on Height) or fix width and alter height (Based on Width).
Note: A track bar is provided to change DPI value, however, we do not suggest you to use it if your computer is slow in speed or the PDF document is complicated. While you drag, the DPI value changes, and the preview pane gets refreshed. It is time-consuming if you drag continuously. Therefore, we suggest you to click either end on the track bar to make the track bar move.
The preview pane offers a decent visual view of what you see is what you get.
If you want to learn more, read the topics on rotation, copy to clipboard, save to file in the preview dialog.