DPI (dots per inch) Problem

[Kamoon]

Hello, there. I'm new to Affinity Photo and I am having problems with altering the photo size (width and depth) and dpi. The photo dimensions and dpi of the photo the customer sent me are: 5152px by 3864 px at 350 dpi. What I am trying to achieve is a photo dimension of 216mm x 162mm at 300 dpi. To achieve this, this it what I have done: Opened up the RESIZE DOCUMENT dialogue box. Firstly, I changed the UNITS to millimetres which in turns alters the PIEXEL SIZE to 373.9mm x 280.4mm. I then replaced these measurements to 216mm x 162mm and decreased the DPI to 300. Resample = Bilinear and the Resample box is TICKED. Then I press RESIZE and export as JPEG (Best quality) and RENAME the file. So far, so good. The problem arises when I import the photograph into QuarkXpress (2016) and the result brings in THE ORIGINAL DIMENSIONS and DPI of photograph before I made any changes, i.e. 5152px by 3864 px at 350 dpi. If I open my saved photograph in PHOTOSHOP it opens WITH the correct dimensions and dpi. Would really appreciate if someone could help me out with this problem as I want to transfer over to AFFINITY PHOTO without having to use PHOTOSHOP anymore. Kind regards.

[jenkm]

If you have the 216x162mm at 300dpi image that is equivalent to 2551x1913px. It can't turn into 5152x3864px.

[v_kyr]

AFAI can tell altering the DPI setting just changes the image dimension but not really the initial associated ppi (pixel/zoll) values here, thus maybe when imported into QuarkXpress this might rescale the image back to it's initial resolution or the one Quark is setup to use here. - When I alter a AP image as you described (dimensions and dpi) the image gets new dimensions, but the initial DPI didn't changed according to other image viewers for the new exported JPG image.

[MEB]

Hi Kamoon,

Welcome to Affinity Forums

When exporting to JPG, click the More button an untick Embed metadata, then try to import to Quark.