optimal image spec's for book printing???

I'm prepping photo's for an 8 1/2 x 11 "iBook" and am wondering about the optimal resolution for the photo's? I'm assuming a sharpened 300dpi tiff in adobeRGB 1998 color space is best and that one simply has to guess at the actual image dimensions for the various crops. Is this correct?

Any other tips would be appreciated also.

Thanks!

Dan

G5's + MscBook, Mac OS X (10.5.4)

Posted on Sep 11, 2008 10:32 AM

Reply
5 replies

Sep 11, 2008 10:45 AM in response to Blind Dog Photo

Blind Dog Photo

Welcome to the Apple user discussion fourms

I'm assuming a sharpened 300dpi tiff in adobeRGB 1998 color space is best and that one simply has to guess at the actual image dimensions for the various crops. Is this correct?


No

the color profile should be sRGB and photos should be 300 dpi JPEGs

Except for full page photos the books are designed for standard 4:3 digital photos - full page are 8 1/2 x 11

rather than "assume", it would pay to read the Apple documentation on this - HELP ==> book

http://www.apple.com/support/photoservices/preparation_tips/

http://support.apple.com/kb/HT2536?viewlocale=en_US

And note that the process is optimized for iPhoto and many people who use Photoshop or other editors are unhappy with their results where as almost every one using only iPhoto loves the results

And before you send it, preview it - http://support.apple.com/kb/HT1040

LN

Sep 12, 2008 1:11 PM in response to Blind Dog Photo

The sRGB that I use is sRGB IEC61966-2.1. Comparing the two sRGB profiles with that utility find them to be nearly identical. The Generic RGB profile that's listed is not quit as close to the two sRGB profiles. The Adobe RGB is way different than the others. You can use CSU to select the profile you'd like to use.

This is the info I received about books and book material quality from Apple:

I contacted Apple and asked for information that I could pass on. Here's the reply I received from Apple:


"Thank you for contacting the Apple Print Products Customer Service.

I understand that you would like to know the printing process that is used and the color mode the files should be in, so you can better advise users in the iPhoto forum.

iPhoto version 4 or later, allows you to import and print files through the Apple Print Product service as RGB, grayscale, or CMYK color space. JPEG files with RGB color space are recommended for best results.

While iPhoto 2 can import files of various formats, including RGB color, grayscale, and CMYK, this version requires JPEG files with RGB color space when printing photos and books.

For more information regarding iPhoto 2, please visit the following article:

iPhoto: Color, Black and White Prints Appear Garbled or Distorted

For more information regarding iPhoto 5, please visit the following article:

http://docs.info.apple.com/article.html?artnum=165501

Here are some of the technical specifications for the books, cards, and calendars. I hope this gives you an idea about their quality and form.

BOOKS

All iPhoto books are printed using acid-free paper for long-lasting image quality. The photos are printed at a high resolution (300DPI if you use iPhoto 6). There is no external modification--such as sharpening or contrast adjustment--of the photos; what you see in the application is what is printed in the book.


Hardcovers Books

The cover is hard-bound and covered in linen. You select the linen color during the book-ordering process. The hardcover books have a solid, stiff binding that is glued and crimped. The internal pages, measuring 8.5 x 11 inches, are printed on McCoy 100# Text Gloss paper stock.

Softcover Books

The softcover books come in three sizes:

- Large 8.5 x 11 inches
- Medium 6 x 8 inches
- Small 2.6 x 3.5 inches

All of the softcover books have internal pages that are printed on McCoy 100# Text Gloss paper stock. The large softcover book has a white cover (Kromekoteplus Folding Cover, 16 point) with a cutout on the front that reveals the cover-page photo in the book. The covers for the medium and small softcover books have the cover image and title printed directly on the cover. All of the softcover books have a glued binding and feature a thick cover of McCoy 100# Cover Gloss paper stock.

CARDS

All cards are printed on McCoy 120# Silk Cover paper stock. The postcards measure 4 x 6 inches, and the greeting cards measure 5 x 7inches.


CALENDARS

All calendars measure 8 x 10 inches and are printed on McCoy 100# Silk Cover paper stock.

To ensure the best print quality, we have chosen to use Kodak NexPress technology. The press uses a dry toner, which is fused to the surface of the paper. Please see NexPress' site for more information:

KODAK NEXPRESS 2500 Digital Production Color Press

I hope you find this information helpful in answering questions on the iPhoto forum."


Another user contacted Apple about book printing and his answers is here: http://discussions.apple.com/message.jspa?messageID=1836126#1836126.

A user who's a digital press operator had this to say: http://discussions.apple.com/message.jspa?messageID=3751865#3751865



OT

Sep 11, 2008 12:01 PM in response to Blind Dog Photo

Dan:

Use the largest pixel dimension image you can get for all sizes. If you're going to use a photo in a smaller frame don't worry about resizing down. Use the largest you have. It will be resized automatically when the book is converted to a PDF file for uploading and printing. For full page images your photo may not be 300 dpi since it all depends on the size that the camera produces. Many have reported great results with resolutions at 180 dpi or thereabout.

And, as Larry pointed out, it's best to use the sRGB or sRGB-IEC61966-2.1 color profile. If your camera has the sRGB or just a Camera RGB profile that would be adequate. You can compare these profiles with ColorSync Utility and see just how close they are and how different the Adobe RGB profile is.



User uploaded file

TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto (iPhoto.Library for iPhoto 5 and earlier) database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've created an Automator workflow application (requires Tiger or later), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. It's compatible with iPhoto 6 and 7 libraries and Tiger and Leopard. Just put the application in the Dock and click on it whenever you want to backup the dB file. iPhoto does not have to be closed to run the application, just idle. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.


Note: There's now an Automator backup application for iPhoto 5 that will work with Tiger or Leopard.

Sep 12, 2008 12:15 PM in response to LarryHN

Thanks.

I looked around the links you provided. I saw RGB recommended but I didn't see sRGB specified anywhere. To the best of my knowledge sRGB is primarily a web color space while RGB is the standard for graphics professionals and other critical monitor viewing, and CMYK is the default for most offset printing applications. Are you 100% certain that sRGB is the Apple preferred color space for there books? It seems like kind of strange color space to print in. What is the printing process used for these book? (I assumed it was offset - but I guess that must be just another one of my erroneous assumptions).

I also couldn't find any reference to an exact recommended resolution or dpi. Or maybe I'm just being blind on that front as well? I'll go ahead and use 300 since that is a pretty standard default for offset. I don't think I'll use full res as one poster suggested since I shoot with a 12.8 megapixel camera and the upload time for 100 plus images would be excessive.

And lastly, you specify an aspect ratio of 4:3 for the non full page images, but the images change shape slightly with the different multi-image page layouts, so I don't see how they can all have all have the same cropping ratio. I was hoping for exact recommended pixel dimensions for the various template windows in order to be able to size my images accurately. I'm just kind of surprised Apple doesn't supply more straightforward answers for all these spec's...

Dan

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optimal image spec's for book printing???

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