Preview - Actual size is wrong

By the way, anyone know how to show a image in 50% scale using shortcuts? It'd be a good temporary solution for this problem.

Hi, I have the same problem on my late 2013 MacBook Pro. When I view images in Preview their "Actual Size" appears to be pixel-doubled (as they would appear on a non-retina screen). I am not sure if this is intended behaviour or not but here is an interesting find: if you take a screenshot and view it in Preview it is displayed as expected (one image pixel is mapped to one device pixel). There seems to be an extended attribute called com.apple.metadata:kMDItemIsScreenCapture that triggers this. You can force the screen capture behaviour on any image by doing the following:

1. Set the image's resolution to 144 ppi (without rescaling);
2. in Terminal type `xattr -wx com.apple.metadata:kMDItemIsScreenCapture 62706c6973743030090800000000000001010000000000000001000000000000000000000000000 00009 <image.jpg>`, replacing <image.jpg> with the appropriate file name.

badly, the problem persists also after the update of OS 10.9.1

we need a fix!

confirmed, the issue still persists

Yeah! I have the same problem as many people.

by the way, it has been posted many times before you!

https://discussions.apple.com/thread/5525993

https://discussions.apple.com/thread/5473564?answerId=24150034022#24150034022

https://discussions.apple.com/thread/5477406?answerId=23539499022#23539499022

and so on

...

the people it's talking about reinstalling?! very annoying..

sorry, forgot to say that Apple seems to noticed that and is working on it

Preview>Preferences>images> change setting to "Size on Screen equals size on printout"

Hi i know its been a while since you post it but as far as i know there still no solution from apple regarding this annoying issue, but, there is a work around, if you will add @2x at the end of your files you will see them in their real resolution.

for example test@2x.jpg

hope this is helpful

yoav

this doesn't work for me (10.9.5), does it work in Yosemite? How about El Capitan? Thanks

I just ran into this issue on El Capitan. Most annoying, especially to find out that it is something that people have been complaining about since 2013. Kinda shows that Macs "just work", for a very specific definition of "just working".

Confirmed, still an issue in 10.11.2 (El Capitan)

Yup, still an issue for me. Incredibly frustrating. It even effects images after uploading them to my website, so when I view them there, it displaying them as a 1500x1000 upscaled to 3000x1500, so you can image how **** it looks. C'mon apple, fix this for us 😟

Yes. Same problem, changing the preference in Preview does not help. The issue is with the dpi setting stored in the JPEG image's EXIF data. If the image is set to 72 dpi, then it opens at full size. If the same image (same image data) is set to 144 dpi, then it opens in Preview at one-quarter size (1/2 height x 1/2 width). The "1 image pixel = 1 screen pixel" setting is not being honored.

If the image is 1000x1000 pixels, then I want Preview to open it and use 1000x1000 screen pixels, regardless of the DPI setting of the image, which is really only relevant for printing. Preview is not honoring this setting on OS X 10.11.3.

You might want to consider starting a new discussion. Since this one is a couple of years old, less people are likely to look at it. A new post would be much more visible. You can link to this one. Post in El Capitan.