Colour change on preview image

Hi, can anyone help?

 

I am a graphic designer (25yrs +) specialising in book design and one of my clients has just posted their publication for sale on Lulu using the artwork I supplied for them. The issue we have is that the original background colour on the cover has changed somewhat. The colour it should be is a medium light green but on the preview, it now looks like a really bright flourescent green - not at all like the original.

 

The cover file which was uploaded was a high resolution pdf created using the pdf joboptions file that Lulu supplies via a download. This was output from InDesign with all colours converted to CMYK. 

 

My thinking is that the cover colours have been converted (badly) to RGB by the preview generator. I have some experience in setting up online Digital Asset Management Sytems and we have from time to time come up against a similar problem when the automatically generated previews for images use the wrong color profile – RGB instead of sRGB. It appears something similar is happening with this book cover.

 

Can someone advise how I can fix this please?

 

I've atatched jpegs of the original and the Lulu version to show the comparison and this is the link to the book:

http://www.lulu.com/shop/search.ep?keyWords=Trees%2C+people+and+the+built+environment+II&type

 

Thanks

Jon

Comments

  • Just KevinJust Kevin Lulu Genius

    Hi, can anyone help?

     

    I am a graphic designer (25yrs +) specialising in book design and one of my clients has just posted their publication for sale on Lulu using the artwork I supplied for them. The issue we have is that the original background colour on the cover has changed somewhat. The colour it should be is a medium light green but on the preview, it now looks like a really bright flourescent green - not at all like the original.

     

    Do you mean the Preview on the Spotlight? They use Flash and are lo-res.

     

    Do you mean the Print Ready PDF Preview you can view in the Cover Wizard? That Preview is to give you the opportunity to adjust the art if need be and re-upload it, before you move on from the Cover Wizard.

     

    The cover file which was uploaded was a high resolution pdf created using the pdf joboptions file that Lulu supplies via a download. This was output from InDesign with all colours converted to CMYK. 

     

    I don't know about that, my images are just 'millions of colours' at 300 to 600 '8-bit' jpgs and the Cover Wizard handles them OK.

     

    My thinking is that the cover colours have been converted (badly) to RGB by the preview generator. I have some experience in setting up online Digital Asset Management Sytems and we have from time to time come up against a similar problem when the automatically generated previews for images use the wrong color profile – RGB instead of sRGB. It appears something similar is happening with this book cover.

     

    All that is important is what the book looks like in print, and to do that you order a Proof. If that's still not how you want it then you adjust the art (perhaps make it lighter? it looks darker to me.) and Revise the book via your Project List. Often this is all done before one places the book for sale.

     

  • potetjppotetjp Professor

    I design my own covers with Photoshop. I noticed from the very beginning that their colours are darker once printed. Since then I have taken this into account when I create them.

    Similarly, illustrations of the text are darker if I do not convert them to greyscale, brighten them and enhance the contrast.

  • Just KevinJust Kevin Lulu Genius

    Yup. Books printed by POD are often not the same as books printed the old-fashioned way.

     

    There's also monitor settings to take in to account. I spent ages setting mine up to match the printouts on my own printer, but I still say the proof is an a Proof.  Smiley Happy

     

    One problem can arise in Lulu's use of many printing companies. They may not have their machines set the same, and one would never know unless one orders Proofs from many countries.

  • DysonLogosDysonLogos Bibliophile

    kevinlomas wrote:

     

     

    All that is important is what the book looks like in print

     


    Bull. If your cover looks like garbage on screen, it will be a lot harder to sell those print copies.

Sign In or Register to comment.