Open the required bitmap file using the 'File - Open' from the top menu items, or simply hold down the control key and press 'O' (Ctrl + O) and select the required file.
Open the Image Size dialogue from the Modify menu (Alt + M, followed by I).
Set the resolution to 72 dpi, and make sure constrain proportion and resample image are checked as in the following image.
Click on the magnify button 
in the toolbox, right click over the image and select 100 percent magnification.
Ensure that Optimise from the Window menu item is checked an the Optimise dialog box is visible. Also ensure that the preview tab on the image window is selected as below.
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Photographs are more suited to JPEG compression, images with few colors, hard edges and text are more suited to GIF compression.
1) If you are compressing a photograph select JPEG - Better Quality or JPEG - Smaller File from the optimise settings (see below), or selecta custom JPEG setting before exporting the file.
2) In this case we are going to use GIF to give us a few bold colours and the anti-aliasing (blurring of hard edges) needed to display the image correctly.
Reduce the colours until you are using the minimum required for a good likeness of the image. In this example we can safely reduce the number to 16. This will half the file size, as we are only using 4 bits of a byte.
Before you save, create a transparency (essentially remove) from the background using the eyedropper
tool 
Then on the File menu, select Export (Ctrl + Shift + R). The file will be saved in the format and with the file extension selected in the Optimise box.
You may notice that your original image background still shows through when placed in a web page. This can be remedied by either i) changing the page background, ii) creating the tranparency before resizing the image, or iii) changing the bitmap background colour before creating a transparency.
When you have your page open in a browser (eg Internet Explorer), roll your mouse over an image to display the alternative text as below :
NOW PRESS THE PRINT SCREEN BUTTON NEXT TO THE F12 KEY
From the Start - Programs menu, start up Fireworks. You will notice that at the bottom of the screen, as it starts, it will say "Importing Clipboard"
Do File - New (Ctrl + N) and it will automatically choose the size of the Print Screen image (eg 800 x 600) and 72 dpi. Click OK.
As soon as this file opens, paste the image from the clipboard, Edit (or right mouse button) - Paste (Ctrl + V). and, hooray! there it is!
Then you have to resize the image so that it fits on the paper as below :
...and don't forget to turn the paper around in the printer Properties box to 'Landscape'.
