Re: [libreoffice-users] exported PDF file size

On 03/05/11 11:14, Cliff Scott wrote:
> ** Reply to message from "Daniel A. Rodriguez"
> <daniel.armando.rodriguez@gmail.com>  on Mon, 2 May 2011 15:05:40 -0300
>
> > > I have been watching this thread and have to ask the obvious question. Are
> > > the pictures sized to the desired size before inserting into the document? If
> > > not try that. I have found that can make a huge difference. I know many
> > > people keep pictures in very high resolutions which is fine, but if you just
> > > put a large picture into the document and resize it there it still takes up
> > > the full  storage size of the original so thus makes very large documents
> > > which translate into large PDFs.
> >
> > Hi
> >
> > almost all of them are screenshots, but not full screen images just a
> > menu or a bar for instance
>
> Likely they are not too large, but have you looked at their actual sizes to
> verify their size?

Hi All,

I have also been watching this thread with interest.

For comparison, after much testing and manipulation I have been able to 
get quite respectable PDF files which illustrate ~40 high resulotion 
screen images.

The PNG files, which show various tasks, range from 5KB upto 189.6 KB.

Together they total 2.9 KB.

These images were created using Shutter using default settings.

Merged with a  relatively small HTML file of 43KB, they merge to a 2MB 
PDF (note the PNG are converted to JPG).

This process is done outside LO but illustrates that image rich files 
can be created that can be presented in relatively small PDF.

Another example, using LO...

6.8 MB ODT file with detailed high resolution maps could be compressed 
to a 2.6MB PDF file. I could of made the resulting PDF smaller by 
sacrificing map quality but decided that this was a good balance between 
size and image clarity.

On a side note - experimentation has shown that tables can cause file 
bloat more than some image types. Experiment with empty files to see 
what gets the best result.

When creating technical reports I always insert an image twice as large 
as the size they will be presented in the report and allow 60% 
compression when creating the PDF. This seems to be a good combination.

--
Cheers Simon

   Simon Cropper
   Website Administrator
   http://www.fossworkflowguides.com

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