Hi :) I know it was only an alpha-release but it fits the idea of "release early and release often" rather than trying to produce something too perfect and then finding that no-one uses it.
If it's possible to get it onto the Extensions website http://extensions.libreoffice.org/ then maybe more people could attempt to use it and maybe post bug-reports, and maybe even help develop it further (Gpl, LGpl. Mpl or whatever copy-left license seems best (ideally same as other Extensions use)). I guess i can imagine a few finesses that probably wouldn't even be useful to most people. So, feedback and comments would become useful. The Extensions website seems set-up to handle that sort of thing. Errr, zipped images are often not hugely smaller than their original size. The advantage is that the zip-file ends up being a container holding all the different bits together. Scaling reduces image's byte-size far more. Regards from Tom :) On 2 November 2014 21:56, Cley Faye <cleyf...@gmail.com> wrote: > > > > The odt file is a compressed zip archive. Compressing the contained > > pictures would hardly reduce the file size. > > > That's not true. The point was (if I remember this thread correctly) that > when designing the document, you have high-definition pictures, say > 1200dpi, and those takes a lot of space. Now, if you want to output this > for a projector you'll only need pictures at 90dpi, or for printing with a > medium quality you only need 150dpi, and doing a poster you'll need the > whole 1200dpi. > > > Sending the same file with the original 1200dpi pictures to everyone sure > is a solution, but you'll see the waste of space. It doesn't have anything > to do with odt file being compressed; there's juste *more* informations > with bigger images. Other (impractical) solutions could be to maintain > multiple version of the same file, or keep the images linked to multiple > folder, and swap them outside of LibreOffice. Not good when you manipulate > large documents. > > Now, what would be nice is a way to take an odt with such large pictures, > and produce different versions suited for different needs. You keep the > "original", and with the press of a button, produce a separate odt file > where the pictures are scaled down appropriately (like the option in PDF > export). From the discussion, it looks like MS Word have something like > this, and while mimicking Word is not a necessity, I clearly see the need > for such an option for LibreOffice power users. > > 2014-11-02 22:36 GMT+01:00 Tom Davies <tomc...@gmail.com>: > > > Cley seems to have created something like an Extension or maybe > > independent program to automatically re-scale the byte-size of all images > > in a document and i'd forgotten all about it. > > > It was (is? I probably left it online) a separate tool. You could feed it > an ODT, and produce a (hopefully) smaller ODT where all pictures are scaled > to a given dpi. > It was only a proof of concept: I didn't read the whole ODT spec or > something. It works by looking in the XML for pictures links, and retrieve > their "printing" size (in centimeters). It then scale down all linked > images in the ODT archive, so that their size in pixels exactly meet their > printing size for the specified DPI. > > For example, if you have a document with a picture set to 10x10cm, and the > picture source is 4700x4700 pixels, the image is roughly at 1200dpi. When > modified for printing at 150dpi, the picture would be scaled back to > 590x590 pixels, drastically reducing the file size while keeping the > expected output quality. > > (this also depend on scaling methods and other things, but it was the > general idea). > > -- > To unsubscribe e-mail to: users+unsubscr...@global.libreoffice.org > Problems? > http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ > Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette > List archive: http://listarchives.libreoffice.org/global/users/ > All messages sent to this list will be publicly archived and cannot be > deleted > -- To unsubscribe e-mail to: users+unsubscr...@global.libreoffice.org Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted
