Output resolution issue

Hi, I usually use Siril to process and stretch my images after stacking in Deep Sky Stacker. Then I use Photoshop for final touches.

When exporting the file from Siril to a TIFF file, I noticed that the exported file comes with a lower resolution, 72ppi instead of original 300ppi of the imported stacked file. How can I change the resolution for the output file?

I’ve been surfing in settings with no success about this, and I need to keep the original resolution for printing purposes.

I use Windows 10 and this issue is present in every version since I started using Siril a year ago.

Thanks in advance,

The ppi wrote in the file has no impact on the resolution of the image.
The image has always the same number of pixels if you have 300 or 72ppi.

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