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the OP's question was just What does the 256 Levels in 8 Bit actually mean, it was pretty vague about colour or grey, its not surprising the answers have gone off in different directions. Mastegman explains it all pretty well. I'd just say that 2 to the power 8 = 256, and leave it at that. You...

these are short names for the longer chemical name of the plastic pvc is poly vinyl chloride pp is poly propylene etc, They are not chemical Symbols. Each type of plastic has different properties. For packaging you need to consider things like how good a moisture barrier or how good an oxygen or...

InDesign will cheat with transparency and can replace (during flattening) with overprinting DeviceN if it is a spot colour fading to nothing sat on top of cmyk. This doesn't break PDFX-1a rules as there is no transparency and spot colours are allowed. The problem comes when you try to convert...

looks like its the opposite of transparency, if you flatten out of InDesign, and the background is spot, you sometimes get 0% cmyk channels set to overprint the spot or vice versa, unfortunately when you convert the spot to cmyk you then can't overprint cmyk with cmyk. If you ask InDesign to to...

AFAIK when you place the ai file what you are placing is "the pdf compatible part" generated when you save as .ai not sure if this has any bearing on color management? Stephen will know When you save a change to the multiple artboard illy file I take it that all the artboard placements need...

I'm guessing that idml strips out the part that idcc2015 is warning you about. For example you did not get Profile mis-match warnings opening an idml saved from CC when opened with CS6. Things are getting weirder, today I closed an indd file, moved all the images manually to the Links folder...

We name Preps 5 templates "page size_binding", (for popular sizes we'll split each into three or four colour bar types.) inside there can be many signatures with individual names. You can navigate and select fairly quickly with Prinergy Selection. With Preps 7 we ran into several problems, you...

We have a similar set up, We are 90-95% template based using signature selection rather than putting together fresh impositions for each job. Whilst Preps 7 is superior for quickly editing or even building fresh impositions, for me it falls down at the Save As Template stage, because it doesn't...

Use a portrait imposition. Rotate the PDF pages in Acrobat or your workflow. Usually all 90 CCW except the back cover which would be 90 CW.

Your screenshot confirms that the font BirdsofParadise is not embedded in the pdf. Your Acrobat Prefs are allowing the font to be accessed from the local machine. If the local machine does not have the font (Franks) you will get font substation.

sounds like Univers is embedded and Birds of Paradise isn't, Acrobat > cmd D to confirm?

may need a new ink -jet to replace HP design jet 5500, 36inch wide roll fed, used for imposed paper proofs for internal checking of bleed/folding etc, must be driven from Prinergy Sever running Windows Server. any suggestions, really not fussed about quality, speed is much more important. Anyone...

What do you guys do when the PDFX/4 output intent is incorrect? for example the images are tagged with mixed, SWOP and Fogra39 ICCs, the Output Intent is Fogra39 and you are going to printing litho on an uncoated Offset Stock? Convert or reject?

"A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools." Douglas Adams

faux transparancy . if you wanted to darken a spot colour or cmy you could set a black to white gradient to overprint, perhaps with a large area of white. You could then export to pdfx 1 or 3. I also once created a pdf with white text set to overprint reading "If you can read this text then...

Change step 4 of what I posted on page 1 to Clean up Trim area and I get this (20mm rather than 1inch)

Using Prinergy, is it possible to produce a spot colour separation file in colour, as a small file we can ftp to a remote site for ink-jet proofing. Our client requires 6 colour jobs to be output on one sheet as a composite colour and then the 2 spot colours as progressives as 2 additional...

On the one hand this is a perfectly good strategy, on the other hand background tints that would be better off converting don't get converted. If I was playing devil's advocate I'd say this is a bad idea because you are arbitrarily choosing to change only half the job! But, it is often the way I...

I'm assuming the plate curves you mention are calibration curves and your RIP is not Profile converting. In theory converting to Fogra29 when you make the pdf (or maybe better to make the conversion in Acrobat) will change the numbers and hold the appearance for printing on uncoated stock...

Offsetting the Media box by a negative amount only seems to work on the page you are viewing + if there is a Crop box you can't easily see the change. Then trying to apply to all pages in document pages appears to have no effect.