How to Straighten a Crooked Image in Picasa

We’ve all done it. Returned from holidays or a trip out and found that one or two of our best snaps are not straight. Whether this was caused by the excitement of the vista or the bottle of Greek ouzo you had at lunch we can only guess. Fear not though – straightening these crooked images is pretty straight forward.


Many photo editing software have an inclusive tool that allows the straightening of an image and they all work in a similar manner. I will utilise the tool included with Picasa in this article as it is free for anyone to download ( and fairly straight forward to use.


  • Find the ‘crooked photo’ in your Picasa/Photo library
  • Double Click on it to open it up for editing (in the example show we will use the rainbow image which is clearly not straight in the original)

The Picasa Editing Tool screen will open.

  • Click on Straighten


You will now see the image in a single window with a grid overlaid to help you straighten it.

  • Left Click on the slider on the bottom
  • Drag it left or right to rotate the image clockwise or anticlockwise.

Tip: when editing, locate a straight line that is either the horizontal you require or the vertical. You can use this as the guideline. In the sample photo I’ve used the edge of the fields as the straight line.


  • When you are happy that the image has been straightened click on Apply

And Voila! You have a straightened image (and very professional looking too).

Oh and don’t forget to save it!


Info: image taken by my Father-In-Law during a storm near Aylsham in Norfolk, Autumn 2014

Taff Lovesey

About taffybach

Author of the young adult fantasy novel series, The Portal Chronicles, including The Spider Gem and The Shimmering Gate. When not writing and promoting Taff runs a small IT support company, LITES PC based in Bourne UK.
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