PDF display problem 10.7.5 OSX

[nibnibs]

Downloaded PDF files display as black & white only in preview (created in Adobe Illustrator 5.1) in 10.7.5 OSX Mac mini, all software updates installed. However same PDF files display full colour on iPhone and old G5 Mac.

Any help gratefully received.

 

[benwiggy]

Might be a bug in Lion. There are plenty of bugs relating to Preview and PDF manipulation.
How does it look in QuickView? (Press <space> in Finder.)

If you resave it in Preview, how does it look then? (Duplicate and Save).

 

[nibnibs]

Might be a bug in Lion. There are plenty of bugs relating to Preview and PDF manipulation.
How does it look in QuickView? (Press <space> in Finder.)

If you resave it in Preview, how does it look then? (Duplicate and Save).

Thank you. Have tried quick view and re saved in preview but no change . Have also tried unsuccessfully from several sources to download and install Adobe reader. Downloads ok but then times out when trying to install...

 

[ricksprotruck]

Ai pdf file error found

I did some checking do to a similar problem and found what could be your problem.

Pdf files made in Illustrator have a problem being displayed on mac computers during the preview when the colors are Pantone colors and will show up as black and white.

If you are to make a file in illustrator rgb or cmyk mode and make a line of color blocks on one side with normal picked colors that are rgb or cmyk then on the other side make a row in pantone colors from the color book (solid coated example) then save as a pdf.

the normal colors rgb/cmyk will show up fine and the pantone colors will show up black or white on the desktop or in preview. when sent to aan iphone or a windows based computer or opened in AI or adobe reader they will show up fine.

Your files will not be screwed up when sent to other people but mac's preview seems to be the problem and does not show the color correctly nor will print them correctly to a color printer.

Get adobe reader and open files in it or illustrator when checking colors.

 

[benwiggy]

Pdf files made in Illustrator have a problem being displayed on mac computers during the preview when the colors are Pantone colors and will show up as black and white.

You may have hit the nail on the head here.

I would advise anyone creating PDFs in Adobe Creative Suite apps to view and print them in Acrobat or Adobe Reader. Preview is not very good at the "serious end" of PDFs.

One of the biggest problems in print is people using SPOT colours, i.e. colours designed to be separate inks, in addition to CYMK or RGB. All colours should be redefined as CMYK or RGB, unless you know that the printer is actually going to get a tin of ink off the shelf with the same Pantone ref number.