Hi John, The iPad doesn't supply a device calibrated CMYK profile installed. As a result, any PDFs with CMYK content tend to look quite crazy. Conversely, I believe that it handles conversions from Adobe RGB to the iPad's screen very well indeed, so you'd be highly recommended to find a way to adjust how you're outputting your PDFs or to find a tool that can do a conversion after the fact.
Keep in mind that sRGB profile was created for computer monitors and Adobe RGB 1998 is a good RGB profile for digital printing (and more), but the iPad is neither really - maybe soon there will be a profile created for it. Since I haven't tested it in-depth I'd suggest you try both and see what turns out true-to-color for you. There are a couple of good blogs I have seen about using Photoshop for iPhone & iPad design. This one seems to be in-depth. <http://bjango.com/articles/photoshop/> There are several PDF rendering engines, and the quality you get varies from program to program. Obviously the iPad doesn't have the same horse power to put behind it's PDF rendering as desktop or even laptop. So, the PDF rending engine build in isn't going to handle really large high quality PDF files. Given the nature of the device it is never going to substitute for a full computer for image rendering or or manipulation, at least not on a professional level. That said, GoodReader is probably one of the better PDF viewers on the iPad. It uses the iPad's included PDF engine by default, but does have it's own that can be turned on in it's settings. The other engine is supposed to be faster, not necessarily better quality, but you could give it a try anyway. GoodReader is a handy app to have around for a variety of reasons, so you'll likely find other uses for it. Cheers, Ronni 17" MacBook Pro 2.3GHz Quad-Core i7 2.3GHz / 8GB / 750GB @ 7200rpm HD OS X 10.6.7 Snow Leopard Windows 7 Ultimate (under sufferance) On 17/04/2011, at 11:29 AM, John Hatch wrote: > > Daniel, > I have opened the same file on my mac book pro and the image is OK any > suggestions > > John > > Sent from my iPad > > On 17/04/2011, at 7:07 AM, Daniel Kerr <[email protected]> wrote: > >> >> Hi John >> >> If other pdfs open fine, then I'd say it's a problem at the other end. (do >> others receive them with the same problem?) >> >> If other pdf's open with the same issue, then it probably a problem your >> end. (Check the settings / preferences) >> >> Kind Regards >> Daniel >> >> >> On 17/4/11 12:05 AM, "John Hatch" <[email protected]> wrote: >> >>> >>> Hi, >>> I am receiving club news letter in pdf but the colour images appear as >>> colour >>> negs. Is this a problem at the creation stage or something on my ipad >>> >>> Any suggestions >>> >>> The news letter has been created in acrobat pro and nitro on a PC >>> >>> John >>> >>> Sent from my iPad >>> >>> -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Unsubscribe - <mailto:[email protected]>
