Is there a purpose keeping flattened PSDs for linked images in InDesign

Forum|Forum|7 years ago
December 4, 2018
3 replies
594 views

I received an indesign file for printing and future revisions, but all the linked images are very large PSDs, none of which are actually layered; they're simply flat images. Seeing as the image profile is already set to CMYK, is there any purpose to not saving the files out as JPG? The final format is a small brochure. I don't believe the compression level of a JPG will be noticeable to the everyday user, and I doubt anyone in the real world can actually tell when they look from advertisement to advertisement.

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Correct answer rob day

Converting the PSDs to JPEGs would save you some disk space, but that's the only advantage. When you place a JPEG, InDesign places the pixels including the original JPEG artifacts, so if you export a PDF with JPEG compression, there will be a double compression in the exported PDF.

rob day

Correct answer

Community Expert

Converting the PSDs to JPEGs would save you some disk space, but that's the only advantage. When you place a JPEG, InDesign places the pixels including the original JPEG artifacts, so if you export a PDF with JPEG compression, there will be a double compression in the exported PDF.

Bill Silbert

Community Expert

I would suggest talking to your printer as to what format is required for their use.

Matthew David KingAuthor

Inspiring

Does it matter if I send them PDFs though? (That's what's normally done, this is just for efficiencies sake in this case).

A business that makes nothing but money is a poor business. - Henry Ford

Bill Silbert

Community Expert

If they're good with the quality of the pdfs you're sending then you should be OK. The final say in the best way to prepare a job always rests with the place it is to be output and the quality that will be needed. In my experience the printer's needs can vary wildly from vendor to vendor.

BobLevine

Community Expert

The real damage has already been done when they were converted to CMYK. Saving them as high quality JPG will make zero difference.

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