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JVimes

Resize tool unaware of image DPI

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My photo has 96 dpi (see screen shot), but when I try to resize it in Affinity, the DPI is set to 1, making it turn out 5.25x7 pixels instead of 5.25x7 inches, unless I type in the DPI by hand. DPI should be read from the file metadata.

 

5aQ8afD.png

 

oKZ0qUw.png

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Hi Tony,

If this helps I've encountered this before when using images saved from Facebook. Windows Properties thinks the image is 96dpi (possibly guessing that value if none are supplied). However if I open that image in both Photo and Photoshop they both treat the resolution as being 1dpi (although the Photoshop Resize Image dialog defaults to 72dpi).

See attached sample file and screenshots.

EDIT: It seems as though the images are being saved with no DPI value - at least that's what Irfanview shows.

post-37-0-85339000-1480593915_thumb.jpg

post-37-0-72093600-1480593923_thumb.png

post-37-0-09120600-1480593927_thumb.png

post-37-0-22706300-1480594542_thumb.png

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EDIT: It seems as though the images are being saved with no DPI value - at least that's what Irfanview shows.

 

If IrfanView doesn't show a DPI value, then there isn't one! And that would explain why Windows is assuming 96 dpi and Photoshop is assuming 72 dpi. :)

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