How to fix scan document alignment photoshop 2018

Steps : 1

Open your Adobe Photoshop CS3 and go to file 

Step : 2

Click Import and the Select your Printer/Scanner and Scan the Document as shown in below 

Step : 3

After Scan your document will look like this

Step : 4

Right Click on Eye Droppler Tool  and Select Ruler Tool

Step : 5

Select the Top of the Text and slide to right to the top of the text as show in the picture below

Step : 6

Go to Image and select Rotate Canvas and Select Arbitrary

And here you go your Scan document  alignment is fixed