[X-Newbies] PDF file compression.

Robert MacLeay robertmacleay at mac.com
Thu Jan 4 12:02:15 PST 2007


Much depends on what is stored in the file, and what version of the pdf
standard was used originally.

Adobe Acrobat Pro has a Reduce File Size feature which works as advertised.
It works by (1) saving in a later, more efficient pdf format [which will
make it unreadable by earlier pdf readers]; (2) drastically increasing the
compression of included graphics; and (3) deleting duplicated elements.
There may be other things it does as well.

Note that the efficiency of this depends on the inefficiency of the program
which originally created the document. In practice, I have seen MS
Word-created pdfs shrunk to 10% of their original size, and Acrobat-created
pdfs shrunk to 99% of their original size.  YMMV.

Can you supply a link to the guilty document?

 On 1/4/07 12:40 PM, "Brian Durant" <globetrotterdk at gmail.com> wrote:

> I have a UN .pdf file that I would like to distribute online to a
> social networking site. Unfortunately, the site only allows max 1 MB
> uploads and of course the UN, being a bit of a talking shop, the .pdf
> file weighs in at 2.3 MB. How can I get the file from a bloated 2.3 MB
> to a svelte 1MB? I have tried Unarchiver and Guitar which are both
> excellent utilities, but don't do the trick. I also don't want to
> strip anything from the .pdf  as it then would no longer be the same
> authorized file. I just need to be able to compress the hell out of
> it.
> 
> Any ideas??
> 
> Cheers,
> 
> Brian



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