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Ever wonder why some photos look correct in some programs, merely appear sideways or upside downward in others? That's considering at that place are two different ways a photo can be rotated, and not every programme is on the same folio.

The Two Means an Epitome Tin Be Rotated

Traditionally, computers have always rotated images by moving the actual pixels in the epitome. Digital cameras didn't carp rotating images automatically. Then, fifty-fifty if you used a camera and held it vertically to take a photo in portrait mode, that photograph would be saved sideways, in landscape manner. You could and then use an image editor program to rotate the image to appear in its right portrait orientation. The prototype editor would move the pixels to rotate the epitome, modifying the actual image data.

This just worked, everywhere. The rotated image would appear the same in every programme…equally long as you took the fourth dimension to manually rotate them all.

Manufacturers wanted to solve this badgerer, so they added rotation sensors to mod digital cameras and smartphones. The sensor detects which manner yous're holding the photographic camera, in an endeavor to rotate the photos properly. If you take an prototype in portrait mode, the photographic camera knows and can human activity accordingly so you don't have to rotate it yourself.

RELATED: What Is EXIF Data, and How Can I Remove It From My Photos?

Unfortunately, there's a small caveat. Digital camera hardware merely couldn't handle saving the paradigm directly in rotated grade. So rather than performing the computationally intensive chore of rotating the entire image, the photographic camera would add a minor piece of data to the file, noting which orientation the image should be in. It adds this information to the Exif data that all photos accept (which includes the model of photographic camera yous took information technology with, the orientation, and possibly even the GPS location where the photo was taken).

In theory, then, you could open that photo with an application, it would look at the Exif tags, then nowadays the photo in the correct rotation to you lot. The image data is saved in its original, unrotated form, simply the Exif tag allows applications to right it.

Non Every Program Is On the Aforementioned Page

Unfortunately, not every piece of software obeys this Exif tag. Some programs–especially older image programs–will just load the image and ignore the Exif Orientation tag, displaying the image in its original, unrotated land. Newer programs that obey Exif tags will show the image with its correct rotation, so an image may appear to have different rotations in different applications.

Rotating the paradigm doesn't exactly help, either. Modify it in an quondam awarding that doesn't understand the Orientation tag and the application volition movement the actual pixels effectually in the image, giving it a new rotation. It'll look correct in older applications. Open that prototype in a new application that obeys the Orientation tag and the application will obey the Orientation tag and flip the already rotated prototype effectually, so it'll wait incorrect in those new applications.

Even in a new awarding that understands the Orientation tags, information technology'due south often not quite clear whether rotating an image will move the bodily pixels in the image or simply modify the Exif tags. Some applications offering an selection that volition ignore the Exif Orientation tag, allowing you lot to rotate them without the tags getting in the way.

This trouble tin occur in practically any software, from a program on your PC to a website or a mobile app. Photos may appear correctly on your computer but appear in the wrong rotation when you upload them to a website. Photos may appear correctly on your phone merely incorrectly when you transfer them to your PC.

For example, on Windows vii, Windows Photo Viewer and Windows Explorer ignore the Exif Orientation tag. Windows eight added support for the Exif Orientation tag, which continued into Windows 10. Images may announced correct on a Windows 10 or 8 PC, but rotated differently on a Windows vii PC.

New Software Most E'er Obeys Exif Orientation Tags

Thankfully, most applications now do obey the Exif Orientation tag. If you're using Windows 10, File Explorer and the default image viewer will properly obey the Exif Orientation tag, so photos that come from your smartphone or digital photographic camera will be display properly. Google's Android and Apple tree'southward iOS both natively create photos with the Exif Orientation tag and support it.

If you lot're using Windows 7, you can brand this problem go away by upgrading to Windows 10. If you'd like to keep using Windows 7, y'all may want to use another paradigm viewer that obeys the Exif tags instead of the default image viewer.

The boilerplate website or desktop application should besides obey Exif Orientation, although not all of them do. If a photo appears sideways when uploaded to a website, that website needs to be fixed–merely y'all tin can probably rotate that image on that website anyway. Desktop tools for working with photos should as well support Exif Orientation tags. If an application you use doesn't, you may want to find a more modernistic awarding.

How to Fix Prototype Rotation for Older Programs

If this is a problem for you–peculiarly on Windows vii–you can also use JPEG Autorotate, which uses the jhead command in the background. This tool adds a quick right-click "Autorotate all JPEGs in folder" selection to Windows Explorer. Select it and the tool will examine all photos in a folder, automatically rotating them according to their Exif Orientation tags then removing those tags. Use this tool when you import images and Windows 7 and other applications won't have a problem with them.

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Modern smartphones and digital cameras take faster hardware, so it should be possible for them to save photos in an already-rotated land instead of just applying the Exif Orientation tag. Unfortunately, the industry seems to have settled in Exif Orientation tags every bit the standard solution, even if they aren't ideal.

Thanks to Tom Moriarty for contacting united states and giving us the idea for this article.

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Source: https://www.howtogeek.com/254830/why-your-photos-dont-always-appear-correctly-rotated/