[scribus] pdf file size once more

[Gregory Pittman]

On 04/29/2012 05:36 AM, Flem wrote:
> Hi John,
>
> Le 29/04/2012 06:22, John Ghormley KJ4UFG a écrit :
>>> On 04/28/2012 07:07 PM, John Ghormley KJ4UFG wrote:
>>>
>>>> The question is, of course, how can a 38 mb container hold all the
>>>> data in
>>>> a 527 mb container? Does InDesign use some compression technique that
>>>> Scribus does not?
>
> One question first: did you quote the "Limit Maximum Image Resolution
> to:" option in the "File/Preferences/PDF options" dialog?
> 300 to 400 dpi would be a good choice depending on the lineature your
> printer is using.
>
> In the same dialog you could also consider to test "Image Compression
> Quality:" set to "High" instead of "Maximum" and see if the resulting
> quality isn't good enough for print as the file size will decrease
> accordingly.
>

It's probably worthy of some experimentation. For example, simply use 
the compression methods available in PDF export as mentioned above.

Chances are, the pre-press people using InDesign used compression. The 
PDF has all the image data given to it by whatever software made the 
PDF. Scribus by default does not compress, you have to make the setting 
yourself.

http://wiki.scribus.net/canvas/Image_DPI_and_Scaling,_and_Resultant_File_Sizes

shows the results of some experiments.

Greg