InDesign makes black and white photos brightener than original

Forum|Forum|4 years ago
December 21, 2021
2 replies
940 views

I'm using InDesign CS6 and I'm preparing a book there are black and white photos. When I want to export a .pdf file, these black and white photos are brighter than the original ones.

I can see this in InDesign when I check "Separation Preview": all CMYK (screen 1) gives brighter photos, K alone (screen 2) give the correct photo.

There is a lighter image in the exported .pdf file.

Please, what to do to ensure that the photos in the exported .pdf are properly saturated?

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Correct answer rob day

Thanks! What to do when the printing house asks not to include ICC profiles?

Export to a PDF/X preset with the Output Destination profile set to Document CMYK—that will convert all CMYK and Grayscale objects to DeviceCMYK and DeviceGray (no profiles). PDF/X will keep transparency live, PDF/X-1a will flatten transparency

rob day

Community Expert

See this thread:

https://community.adobe.com/t5/indesign-discussions/density-on-bw-photos-placed-into-indesign-is-changing/td-p/12607376

F

firstl16669603Author

Participating Frequently

The difference in the appearance of black and white photos in .pdf is due to the simulation profile?

Before clicking "Output Preview" (Podgląd wyjściowy😞

After clicking "Output Preview":

In fact, I do not understand why now some photos are exported to me as they are in PS, and others not ...

Where do these problems with the saturation differences between imported and exported black and white photos come from?

F

firstl16669603Author

Participating Frequently

Export to a PDF/X preset with the Output Destination profile set to Document CMYK—that will convert all CMYK and Grayscale objects to DeviceCMYK and DeviceGray (no profiles). PDF/X will keep transparency live, PDF/X-1a will flatten transparency

Oh yes! It finally worked! Thank you very much for your help! Like you said. It was about TRANSPARENCY. I previewed the flattening and set the highlighting for transparent objects. It was only then that I realized that some imported .tif files were transparent! Not only that, as you said, it is enough for one object on the page (spread) to be transparent and it destroys the rest of the photos!