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I'd appreciate some feedback on the process I'm using to convert image files for print (book). I've recently come over from Photoshop and am sure that Affinity Photo/QuarkXPress2017 are the right combination to produce the result I want, but I need reassurance - or suggestion of a better way ...


This is what I do:

  • Open the file (usually a .jpg) in Affinity Photo
  • Change colour format to CMYK (8 bit)
  • Using Resize document, change DPI to 300, uncheck Resample and click resize
  • Then using Resize document again, change units to Millimetres (is there a way to make this the default unit) and then change the width to slightly over the finished size of the image in the book, choosing Resample at this stage.
  • Then save as ...
  • Then Export as TIFF CMYK (making no other changes on that dialogue box)


However, I then always seem to have to resize the image (sometimes to less than 10%)  once I've imported it into QuarkXPress2017 ... and the image file produced is rather large.


Can anyone suggest what I'm doing wrong?


Help would be much appreciated!


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Why are you changing to a TIFF?


1 Changing to CMYK is OK.


2. Select the Hand tool and set Units to Millimetres



3 In Resize Document, set the size you want in MM



4. Set DPI to 300 ,


5 In Resample: use Bilinear if sizing down, Bicubic if sizing up.


6 Make sure Resample is ticked.


7 Click Resize.


8. Export in JPEG or Tiff format for Quark.


Tiff files will be much larger (in MB) than JPEGs. If you use a high quality JPEG setting like 85%, that is considered "Press Quality".

Windows PCs. Photo and Designer, latest non-beta versions.

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Thanks, toltec. Just tried your method and it works a treat.


Since posting and playing around, though, I wondered whether dropping the original image straight into QuarkXPress2017, and letting it do the work would produce a result of comparable quality. Do you have a view on whether resizing an image in Affinity Photo and then placing in QXP is a better method than bypassing AP altogether and just using QXP?

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I think it depends very much on the images. Do you know the source and resolution of all of them?


I certainly would not trust Quark for every image unless I knew the original resolution, colour format etc. That is why we use pixel editing programs like Photo or Photoshop rather than DTP programs like Quark.


But then, I'm a bit of a control freak ;)



Windows PCs. Photo and Designer, latest non-beta versions.

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No problem with being a control freak!


So, would you judge the final quality of the image editing purely visually, or do you have a rule of thumb (eg. file size change) for determining whether an image will print well? I'm producing a 200-page book with c100 images of natural history, so quality is important. 


I'm also surprised that, even using he method you recommended (great to apply, thanks) when I then take the correctly sized image into QXP, I still have to reduce to say 30% to fit the image box. (eg. I've changed document size to 100mm wide, at 300dpi using Affinity Photo, then import it to a 100mm wide box in QXP and it comes in as say 72dpi but resizes to 300mm when reduced in dimension to fit the box). 


Any comment, anyone?

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