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Saving without altering image


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Hi,

I just started with Affinity Photo and I don't know what to save my pictures as.

I used to save pictures as bmp while I was working on them so that I could open them in numerous arty programs and make use of all the different tools.  With bmp there was no compression or resampling, so I knew the picture wouldn't get altered.

But Affinity Photo doesn't give me bmp, so can I save in one of the other formats without any resampling/compression?  It looks like all the raster formats have to have some type of resampling applied.

Thanks.

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TIFF is also be a lossless format, though it will probably result in larger files than PNG.

-- Walt
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Yes, TIFF is usually the most powerful format here and used to provide high-resolution images in print-ready, lossless quality. The format also offerers a higher color depth (up to 32 bits per color component) and is a defacto-standard for high-quality images here, which is also the reason why TIFF is often used for data exchange during RAW conversion. But due to it's complexity it has several times the size of a lossy compressed JPEG image.

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Hi,

Thanks for all the answers.  I'm still a bit confused because even with TIFF I still have to select a resampling method.  If I export a picture without altering its size, is it safe then to assume that no resampling is taking place, no matter what resampling method I choose?  And therefore will resampling only happen if I export the image to a smaller/larger size (downscaling/upscaling?)?

Thanks again.

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  • 2 months later...

There are several different types of TIFF. Which is Affinity Photo using? I plan to move them to Capture One 10.x for cataloging. I'm being forced by Apple's poor judgement from v1.x on to 3.6 of Aperture being EOL. 40 years of photos, digital capture since 1980. All Nikon great majority NEF RAW.

 

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