** Reply to message from Tom Davies <[email protected]> on Mon, 2 May 2011 12:10:10 +0100 (BST)
Reply is at the end of quotes. > Hi :) > I was wondering how this has gone so far? Have you been able to get > significant > reductions? Pdf itself is a compressed format so it might be possible to > simply > increase the compression rate although that might significantly reduce > quality. > > > I sometimes open pdf in gimp and re-save as gif but again there is sometimes > a > loss of quality and anyway it might well not be appropriate for what you need. > > If the 20Mb size is inconvenient for email or posting onto a website then > perhaps a different method of transferring the file might be better? > Usb-stick, > memory card, Cd, perhaps one of those tiny business card Cds, and then normal > postage? > > Good luck and regards from > Tom :) > > > > > ________________________________ > From: Daniel A. Rodriguez <[email protected]> > To: [email protected] > Sent: Sat, 30 April, 2011 1:55:32 > Subject: Re: [libreoffice-users] exported PDF file size > > > > > Hi :) > > I tend to save pictures in 3 different formats to see which gives the best > > result for the least size. I would always keep a copy of the original. > > > > Gif tends to be about 1/10th the size of jpgs or pngs but it doesn't work > > well > > on smoothly changing shades so some of the pictures on pages 15, 17, 19, > > 20, 26, > > 57, 79, 81, 111, 116, 120, 127, 135, 136 and 139 might not work well but > > all the > > rest will probably be better as gifs. > > > > To change formats in Ubuntu just install gimp > > > > I've got it > > > > and use "Save As ... " the change the file-ending from .jpg (for example) > > to > > .gif. Sometimes png is lighter-weight or sometimes jpg although usually > > those 2 > > formats tend to be better for photos. Png tends to be higher quality than > > jpg > > but it is also often lighter-weight. Not always tho which is why i try all > > 3 > > before committing myself to 1. > > > > Note that just changing the format of an image can cause it to degrade a > > bit or > > even a lot and changing the entire document to pdf can cause further errors > > to > > creep into images. At the moment all your images looked fine to a quick > > "squint > > test". > > > > Do you have all the separate images available to work from? Can you create > > a > > new folder for testing different formats? > > > > will play with that > > thanks 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. -- Unsubscribe instructions: E-mail to [email protected] Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/www/users/ All messages sent to this list will be publicly archived and cannot be deleted
