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R C-R, thank you for your input! Disabling the "embed metadata" option worked half-way. The unit turned back from Centimeters to Pixels, but at least my modified DPI is used in the document now. Anyhow, I hope these little things are going to be optimized in the following updates for a smoother workflow experience.

Same experience here with Affinity Photo. That is a bit frustrating. Let's take my scanning routine for my example. I scan an image in 600DPI and open it in Affinity Photo for corrections and resize. It doesn't matter if I change the document into centimeters, change DPI and size and then export it to a Tiff. The next time when I open the image it's back to pixels and also back to the initial DPI (while the pixel dimensions remain). 1. Initial scanned image opened in AP: 5100 x 7019 px Pixel 600 DPI 2. Change document settings into: 21,59 x 29,71 cm Centimeters 300 DPI 3. Export the file to Tiff 4. Open the Tiff file and check document settings in AP or Photoshop: 2550 x 3510 px Pixel 600 DPI That's very frustrating and not very functional as it's not possible to export an image with the dimensions that I would like to define. That make a workflow a bit difficult if I send out files to clients, printers or colleagues. The resolution remain, you don't loose quality, I know, but the output size is simply different than it supposed to be. Let's say an image is printed on a T-Shirt then the size of the print would be wrong. Anything that I'm doing wrong? If not, I would hope that this is going to be fixed or updated.

MBd, very helpful post. Thank you very much for the link!

Hi Lee D, I've just realized your response. (I might have forgotten to activate email notification somewhere) Thank you very much for feedback! That helps!

I have this workflow to scan images: 1. Scan the image as a raw Tiff without embedding a color profile. 2. Open it in Affinity Photo (formally Photoshop). 3. Assign the color profile of my scanner. 4. Convert it to my desired working color profile (Adobe RGB1998). 5. Do my color corrections and save it. Done. In Photoshop: If I open an image file that has no embedded color profile, then Photoshop asks me immediately to assign a color profile that I can choose from the list. That's the point where I select my scanner profile. In Affinity Photo: AP will automatically assign my preset working color profile (Adobe RGB1998) if I open an image file that has no embedded color profile. My question: AP has assigned a wrong color profile to my scanned image at this point. Will the image remain lossless if I now ASSIGN my scanner profile to it? I know that you loose quality if you CONVERT an image to different color profiles. Eg. if you convert an Adobe RGB1998 image into a sRGB, and then back to an Adobe RGB1998, then you won't have the same quality. But how is it if you assign a color profile to an image that has the wrong profile embedded? Any help or opinion?