Windows, landscape to portrait photos

[Register1]

Hi all
I have hundreds of photos on my pc, that are the wrong orientation

Is there a free, or super cheap program that can arrange these so the sky is at the top?

[mmm-five]

You could use GIMP and a batch command to run them all through the same 90º turn.

https://www.gimp.org/

https://www.gimp.org/tutorials/Basic_Batch/

[Mr E]

Renrot will do this from a command line. Super lightweight, but perhaps the user needs to know what they’re doing.

https://puszcza.gnu.org.ua/projects/renrot/

(Highly suggest you back everything up before batch processing anything. Just in case there’s a balls up)

[David_M]

If you are on Windows, Irfanview is great for this sort of thing. Can be done via the GUI or command line in batches (including lossless transform for jpegs).

[dundarach]

https://www.thewindowsclub.com/how-to-bulk-rotate-...

Are you on Windows?

Go to folder, select all, right click, choose rotate?

[Register1]

dundarach said:

https://www.thewindowsclub.com/how-to-bulk-rotate-...

Are you on Windows?

Go to folder, select all, right click, choose rotate?

But then I need to pick all the wrong way photos.
So time consuming.
I have totally around 15,000 photos in about 100 folders.
Some need to go right turn, some need to go left turn.

I would like something that can look into a folder of say, 500 images, and let it pick the ones it sees a "wrong way up" and then fix it.

[otolith]

That is a bit more difficult than a batch rotate, you need something which will decide which way is up.

[Register1]

otolith said:

That is a bit more difficult than a batch rotate, you need something which will decide which way is up.

Yes.

[dundarach]

15000 sounds a lot, however if you viewed them in windows as large thumbnails, you could comfortably see and select a few hundred at a time.

I bet you could get through several thousand in an evening easily.

I'd just mandrolic it!!

[Mr E]

Register1 said:

otolith said:

That is a bit more difficult than a batch rotate, you need something which will decide which way is up.

Yes.

Renrot will read the exif data and rotate accordingly.

Edited by Mr E on Thursday 30th May 18:12

[Register1]

Mr E said:

Register1 said:

otolith said:

That is a bit more difficult than a batch rotate, you need something which will decide which way is up.

Yes.

Renrot will read the exif data and rotate accordingly.

Edited by Mr E on Thursday 30th May 18:12

Thanks,

I will look for Renrot