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Crop Tool Issue

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I was asked by a friend to crop a phone photo down to passport size. I opened up the image, selected the Crop Tool, switched to Resample, set the DPI to 300dpi and the units to Centimetres. Passport photos are 3.5cm by 4.5cm so I tried to add those numbers, but the crop went really weird, it changes my inputs to crazy numbers. I couldn't get it work no matter what I did. In the end I made a new document 3.5cm by 4.5cm at 300dpi and brought the photo in and resized it with the document. Then exported it.

In the attached JPEG the top image is a new document 3.5 x 4.5 cm @ 300dpi. The second image is when I activated the Crop Tool. The third when I set it to Resample the dpi to 300, units to Centimetres. When I try to add 3.5 and 4.5 to the boxes Affinty Photo instead just makes them 62775.13cm and 413.39cm. At first I thought I was doing something wrong, but this seems to be a bug. I have tried this on my laptop and desktop machines, which both run Windows 10 Home, same results!

Crop Box Issues.jpg

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  • 1 year later...


I've found out probably "buggy" behaviour of crop tool in Affinity Photo (ver. / win 10 Pro).

In this video 

in time 4:33 is nicely explained how to crop and resample the image at the same time. I tried to mimic this procedure in latest version of Affinity photo and results doesn't correspond with video example, nor to expected behaviour of  this tool, please find attached screen record.

Is it really BUG or I do something wrong?


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Hi, @Mikulas and welcome to the forums.

I can confirm that. If you use imperial messurement everything works fine, but if you use the metric system the value is multiplied. However, the resolution ratio is divided by the same factor.

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the others always see only the problem.

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In my case nor imperial units don't solve the problem.

The only option is to use as first: Document / Resize document / switch off "Resample" checkbox / set DPI / Save (Resize) and then use Crop tool / resample mode / set the units / set the required dimensions.

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