Quote:
Originally Posted by ganhanugrah
I know how adobe pdf files are created.
I know how photoshop pdf files are created.
what I am asking is;
what is the difference between an adobe pdf and a photoshop pdf??
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That's like asking "what is the difference between an orange and fruit".
A Ps PDF is a PDF. The PDF format allows a wide variety of options. One of which is for some programs to embed ancillary data, that is extra data not needed to simply view the PDF in a viewer such as Acrobat Reader. In a Ps PDF, the whole PDF file is embedded into the PDF complete with layers, guides, ... . This allows Ps to reopen the PDF and use the PSD data recreating all of the layers, guides, etc that were in the original file. Illustrator can create a similar type of PDF that embeds its Ai data allowing a reopened PDF to retain the structure it had originally in Ai.