Step 1. Use the Help menu Get First Example Image item.
Once you have opened the file your screen will look something like this:
"Sub images" are images extracted from the main scan. The main scan is almost always of the whole scanner area. Sub images are extracted automatically or manually.
Step 2. Click on the postcard of "Diabolik" in the top right of the screen, at the top of the column of sub images. The sub image will be highlighted with a red frame:
Notice also the frame with lots of arrows which appears in the main scanner image (on the left around the Diabolik post card).
Step 3. Use the File menu to save your selected image. Click on File and then on Save Single Sub Image. Choose your filename and folder and save the file.
Step 4. Now we would like to save the black and white image, but there are two problems. It is rotated and the automatically extracted image does not show the text at the bottom and top of the postcard. So click in the black and white sub image (in the middle of the column of sub images) and it will be highlighted with a red rectangle, and the gray rectangle with lots of arrows will appear again in the main scanned image:
To make the selection rectangle cover more of the gray postcard drag the horizontal arrows to cover the whole postcard.
When you have the rectangle covering all of the postcard you want hit the S key on your keyboard, or use this icon:
This will Substitute the currently highlighted image with what is contained in the selection rectangle. You should see the change as follows:
Step 5. We would like to rotate the gray postard so that Sarah does not look as if she is lying down. Do the following actions:
Now you will see the postcard the right way up. Don't worry about the apparent smallness of the image, it will be saved at full size.
Step 6. Save the rotated image by using this icon:
or the File menu Save SingleSub Image... item.
Now you can do Lesson number 2.
Find out more about the Selection Rectangle.