Re: [libreoffice-users] Compress images

On 02/27/2014 10:01 AM, Dave Barton wrote:
> Kracked_P_P---webmaster wrote:
> > On 02/26/2014 10:43 PM, Dale Rebgetz wrote:
> > > > There is a 10 MB file size limit, which my book exceeds due to the
> > > > included pictures.
> > > Thomas, beginning with LibreOffice 4.1 there is a new feature where if
> > > you right-click on an image in your document you will see the option
> > > "Compress Graphic...".
> > >
> > > This opens a dialogue box where you are provided with information about
> > > that image (including its current size), proposed compression settings,
> > > and a Calculate button to see the new size of that image if you were to
> > > accept those settings.
> > >
> > > I have not found a way to do this on all the images at once.
> > >
> > > Because the changes are permanent, I suggest you *first* save a copy of
> > > the original (large) document. That way you can try again if you
> > > compress the images too much and loose too much image quality.
> > >
> > > Dale.
> > What format and compression "level" are you using for your images?
> >
> > You could always use JPG and make the image "compressed" to the greatest
> > level that still a good viewable quality. Also, make sure you images are
> > the "exact" size you want for the document and not need to resize it to
> > a smaller size in the document to fit the image area you are using. That
> > will reduce the amount of "space" in the file needed to store the image.
> > I have seen too many documents with nearly full page size images that
> > are reduced to a visible one of less that 2 inches. That just add a lot
> > of file size to the document that is not needed.
> >
> > So, make you image out side your document the visible size and
> > compression level you want/need first, then you do not need to resize it
> > in the document and add unneeded file space/size in your document.
> Many image formats, especially jpeg images downloaded from digital
> cameras, contain metadata tags (eg camera maker/model, time/date and
> many others). Removing all these metadata tags can sometimes make a
> worthwhile contribution to reducing the size of your image files.
>
> A handy little program I use for resizing, compressing and stripping
> metadata from images before inserting them into a document is "FastStone
> Image Viewer": http://www.faststone.org/FSViewerDetail.htm Not OSS, but
> free for personal use. A Windows only program, but undoubtedly there are
> equal or better ones for other platforms.
>
> Dave

Yes, the whole idea is to reduce all of the file size of the image 
before you use it in your document.  I keep forgetting about stripping 
the Metadata from the image.



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