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PDF Optimizer

Forum Index > PDF Creation > PDF Optimizer
2006-12-07 12:45:25
kmattingly
Registered: Dec 7 2006
Posts: 2

What does Document Overhead (in the Audit Space Usage function of the PDF Optimizer) include and what is the best way to decrease the Document Overhead percentage?

My Product Information:
Acrobat Pro 7, Macintosh
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2006-12-12 17:26:55
#1
leonardr
Expert
Registered: Feb 14 2006
Posts: 333
It includes a variety of things that make up the "structure" of a PDF. There isn't any way to really reduce that part of the PDF with PDF Optimizer.

Leonard

Leonard Rosenthol
PDF Standards Architect
Adobe Systems

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2008-08-13 06:04:21
#2
Col
Registered: Aug 13 2008
Posts: 1
So why is this "Document overhead" so large???
For a PDF document I created (~20MB), the document overhead occupies 76% of the document size... Seems very large.
Anyway, my actual question is:

Why can I zip the PDF files I create (only for the last 4 or 5 monthes). The above 20Mb file can be zipped to a 8MB file?
In my memory, pdf files were already optimized and you could only gain about 1 or 2% by zipping them....
Any suggestions?
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2008-08-13 08:21:35
#3
gkaiseril
Expert
Registered: Feb 23 2006
Posts: 4308
Have you looked at the PDF Reference and have any idea about what and how Acrobat stores and displays the data stored in a PDF?

A PDF file is not a text or graphic file. The contents include information for displaying the images and displaying the text without the font being present, actually a computed graphic display.

As for compression, the PDF content may already be compressed using the same compression of the zipped file so there will be very little gained by recompressing the file.

George Kaiser

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