
11-01-09
|
 | Power Member | | Join Date: Nov 2008 Location: Australia
Posts: 1,058
Thanks: 13
Thanked 89 Times in 84 Posts
| |
Re: Is an E-Book a glorified pdf?
An eBook is often a book that didn't get published to paper and only got published electronically, or was in paper and now is offered as an eBook.
PDF - portable document format - has many forms.
When used in commercial print it has very definite specifics - must be high res with any images 300dpi, bleed and trims must be used, all images and colours must be CMYK ie no RGB, web or spot colours, colour profiles embedded, fonts either embedded or converted to outlines and specific versions of PDF are required according to the imagesetters used to make the plates, as not all imagesetters can use the latest PDF versions. Each publisher, newspaper or magazine has definite specifics for commercial print PDFs.
PDF versions 5 and over can use transparency. PDF versions 4 and under cannot have transparent areas or effects.
Web versions of PDF do not have the same restrictions - but they do require images to be low resolution in order to get the PDF down to a manageable web size.
For example, a recent 4 page brochure (A3 folded A4) in full colour with high resolution photos, was around 5mb in size for the print PDF. The same brochure I converted to 4 single A4 pages in one file for the web for downloading and email was only 540kb.
(On the other hand, many times people convert a Word doc to the inbuilt PDF and do not embed the fonts. If they have used fancy or special fonts, these fonts will not show on other people's computers and the text will go awry.)
In other words, PDFs are varied according the the output application, whether they are commercial versions or web versions.
__________________
We paint a picture with words & images to communicate your story. www.unicorngraphics.com.au Design | Illustration | Web | Print
|